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blue · cool

#7397cc

a balanced, vivid blue · cool · closest name: Cornflower Blue

Token name suggestion: True Sapphire

RGB
115, 151, 204
HSL
216°, 47%, 63%
CMYK
44, 26, 0, 20
Luminance
0.3014

#7397cc is a balanced vivid blue, 216° on the wheel and 97/100 on the cool side. Put black text on it (7.03:1). As text it scores 2.99:1 on white — use #4676BC instead. Nearest name is Cornflower Blue, nearest Tailwind family is blue.

hsl(216 47% 63%)rgb(115 151 204)Base step 400AAA inkCool

At a glance

Every number on this page in one read: what #7397cc is made of, how bright it looks, and which way it leans.

Hex
#7397cc
Hue
216°
blue
Saturation
47%
vivid
Lightness
63%
balanced
Brightness
80%
HSV value
Perceived
58%
weighted brightness
Luminance
0.3014
WCAG relative
Temperature
Cool
97/100 cool
Color family
Blue
Tone
Vivid
Best ink
Black
7.03:1
Closest name
Cornflower Blue
ΔE2000 3.9
Chroma
31.2
LCH, 0–130ish
OKLCH L
0.671
perceptual lightness
Tailwind
blue
500 · ΔE 8.3
Web-safe
#6699CC
nearest of 216
Where it sits
Hue216° of 360°
Saturation47%
Lightness63%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #7397cc.

Temperature
Warm ← → Cool97% cool

Reads cool. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red12%
Green73%
Blue14%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#7397cc
HEX (8-digit)#7397ccff
RGBrgb(115, 151, 204)
RGBArgba(115, 151, 204, 1)
HSLhsl(216, 47%, 63%)
HSV / HSBhsv(216, 44%, 80%)
HWBhwb(216 45% 20%)
CMYKcmyk(44%, 26%, 0%, 20%)
LABlab(61.8 1.5 -31.1)
LCHlch(61.8 31.2 272.8)
OKLCHoklch(0.671 0.089 257.9)
XYZ (D65)xyz(29.03, 30.14, 61.40)
Decimal7575500
Display P3color(display-p3 0.451 0.592 0.800)
Web-safe#6699CC

Copy-ready code

every platformclick to select
/* CSS */
color: #7397cc;
background-color: #7397cc;
/* CSS custom property */
--brand: #7397cc;
/* Tailwind (arbitrary) */
class="text-[#7397cc] bg-[#7397cc]"
/* SCSS */
$brand: #7397cc;
/* SwiftUI */
Color(red: 0.451, green: 0.592, blue: 0.800)
/* UIKit */
UIColor(red: 0.451, green: 0.592, blue: 0.800, alpha: 1)
/* Android XML */
<color name="brand">#7397CC</color>
/* Android Compose */
Color(0xFF7397CC)
/* Flutter */
Color(0xFF7397CC)
/* Python / OpenCV (BGR) */
(204, 151, 115)
/* Python / PIL (RGB) */
(115, 151, 204)
/* Java AWT */
new Color(115, 151, 204)
/* .NET */
Color.FromArgb(255, 115, 151, 204)
/* OpenGL / Unity (0–1) */
(0.4510f, 0.5922f, 0.8000f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{115,151,204}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #7397cc 85%, white);
border-color: color-mix(in oklab, #7397cc 40%, transparent);
/* theme-aware in one line */
color: light-dark(#223A5D, #D3DEEE);
/* relative colour syntax */
--hover: hsl(from #7397cc h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #F5F7FA;
  --brand-100: #EAEFF5;
  --brand-200: #D0DBEB;
  --brand-300: #ADC2E1;
  --brand-400: #7397cc;
  --brand-500: #5B85C3;
  --brand-600: #4170B3;
  --brand-700: #365D96;
  --brand-800: #2C4A78;
  --brand-900: #233857;
  --brand-950: #162337;
  --brand: #7397cc;
  --brand-ink: #000000;
  --brand-surface: #F4F7FA;
  --brand-border: #C3D3E9;
  --brand-hover: #5983C2;
  --brand-pressed: #4271B5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141A24;
    --brand-ink: #D3DEEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F7FA',
        100: '#EAEFF5',
        200: '#D0DBEB',
        300: '#ADC2E1',
        400: '#7397cc',
        500: '#5B85C3',
        600: '#4170B3',
        700: '#365D96',
        800: '#2C4A78',
        900: '#233857',
        950: '#162337',
        DEFAULT: '#7397cc',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F7FA,
  '100': #EAEFF5,
  '200': #D0DBEB,
  '300': #ADC2E1,
  '400': #7397cc,
  '500': #5B85C3,
  '600': #4170B3,
  '700': #365D96,
  '800': #2C4A78,
  '900': #233857,
  '950': #162337,
);
$brand-base: #7397cc;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5F7FA", "$type": "color" },
      "100": { "$value": "#EAEFF5", "$type": "color" },
      "200": { "$value": "#D0DBEB", "$type": "color" },
      "300": { "$value": "#ADC2E1", "$type": "color" },
      "400": { "$value": "#7397cc", "$type": "color" },
      "500": { "$value": "#5B85C3", "$type": "color" },
      "600": { "$value": "#4170B3", "$type": "color" },
      "700": { "$value": "#365D96", "$type": "color" },
      "800": { "$value": "#2C4A78", "$type": "color" },
      "900": { "$value": "#233857", "$type": "color" },
      "950": { "$value": "#162337", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #7397cc · 7.03:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.99:1
AA fail · AA large fail · AAA fail
Aa
Black text · 7.03:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #7397cc as text scores 2.99:1 on white and 7.03:1 on black.
Best tinted ink on it, if plain black or white feels flat: #223A5D at 3.84:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#4676BC · 4.59:1
AA on white−12% L
#4676BC
The quick fox
#345990 · 7.05:1
AAA on white−24% L
#345990
The quick fox
#7397cc · 7.03:1
AA on blackalready passes
#7397cc
The quick fox
#7397cc · 7.03:1
AAA on blackalready passes
#7397cc

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #6F94CB is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#7397cc on white: 2.99:1
AA ✗ fail · AA-large · AAA
Aa
#7397cc on black: 7.03:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #7397cc as text on that neutral, and that neutral as text on #7397cc.

NeutralRatioBoth directions
White2.99:1AaAa
Slate 502.86:1AaAa
Slate 1002.73:1AaAa
Slate 2002.42:1AaAa
Slate 3002.01:1AaAa
Slate 4001.17:1AaAa
Slate 5001.59:1AaAa
Slate 6002.54:1AaAa
Slate 7003.47:1AaAa
Slate 8004.90:1AaAa
Slate 9005.97:1AaAa
Black7.03:1AaAa
Colour vision deficiency
true color
protanopia · #839ACE
deuteranopia · #7991CB
tritanopia · #52A2A9

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #7397cc is pinned to step 400; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F7FA
#EAEFF5
#D0DBEB
#ADC2E1
#7397cc
#5B85C3
#4170B3
#365D96
#2C4A78
#233857
#162337
Base = 400Lightest = 50 · #F5F7FADarkest = 950 · #162337Text step on white = 600
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.022 257.9);
  --brand-100: oklch(0.94 0.036 257.9);
  --brand-200: oklch(0.88 0.053 257.9);
  --brand-300: oklch(0.80 0.069 257.9);
  --brand-400: oklch(0.72 0.082 257.9);
  --brand-500: oklch(0.64 0.089 257.9);
  --brand-600: oklch(0.56 0.089 257.9);
  --brand-700: oklch(0.48 0.083 257.9);
  --brand-800: oklch(0.40 0.075 257.9);
  --brand-900: oklch(0.32 0.062 257.9);
  --brand-950: oklch(0.24 0.049 257.9);
}

Colors that work with #7397cc

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#F4F7FA
Tinted page background
Border#C3D3E9
Hairlines and dividers
Muted text#4B6B9B
Captions on the surface
Accent#9A5532
Second voice, not a rival
Dark variant#223A5D
Hover, pressed, headers
Light variant#ECF1F8
Selected rows, tints
Dark surface#141A24
Dark-mode background
Hover#5983C2
One step down in lightness
Pressed#4271B5
Two steps down
Disabled#CFD6E0
Chroma pulled out
Focus ring#79A0DA
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #7397cc

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Not as text
Safe as a fill behind white type
No — use #223A5D
Safe as a 1px border on white
No — use #6F94CB

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

trustedcalmcompetentcorporate

The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The mid lightness keeps it versatile in both themes.

Worth knowing

It is also the most crowded hue on the web. Distinctiveness has to come from your other choices.

Reads as
  • FormalityMedium
  • EnergyMedium-high
  • Weight38/100
  • TemperatureCool
  • ApproachabilityReserved

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#CCA873
Analogous left#73C3CC
Analogous right#7B73CC
Split-complement 1#CC7B73
Split-complement 2#C3CC73
Triadic 1#CC7397
Triadic 2#97CC73
Tetradic#CC73C3
On the wheel
Base+30°−30°+120°+240°+180°216°

#7397cc sits at 216°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red45.1%
Green59.2%
Blue80.0%
R · 0–255
115
0x73
G · 0–255
151
0x97
B · 0–255
204
0xcc

CMYK percentages

Cyan43.6%
Magenta26.0%
Yellow0.0%
Key (black)20.0%

Total ink coverage is 90%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#7397cc text on a black background

contrast 7.03:1

Card sample

#7397cc text on a white background

contrast 2.99:1

Card sample

#7397cc on grey

2.73:1

#7397cc on its own surface

2.78:1

#7397cc on its dark surface

5.84:1

CSS3 live lab

Text font color

The quick brown fox

color: #7397cc;
Background color
Panel with #7397cc background
background-color: #7397cc;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #7397cc;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(115, 151, 204, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(115, 151, 204, 0.45);
Border & gradient
Gradient panel
border: 3px solid #7397cc;
background: linear-gradient(135deg, #7397cc, #8A73CC);
Gradient text

Gradient headline

background: linear-gradient(90deg, #7397cc, #A073CC);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #7397cc;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #7397cc;
caret-color: #7397cc;
Left rule
Pull quote or callout
border-left: 4px solid #7397cc;
Ring + tint
Selected chip
background: #ECF1F8;
box-shadow: inset 0 0 0 2px #7397cc;
Conic badge
68%
background: conic-gradient(#7397cc 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #7397cc over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(115, 151, 204, 0.5)
rgb(115 151 204 / 50%)
#7397cc80
hsl(216 47% 63% / 50%)
color-mix(in srgb, #7397cc 50%, transparent)
Alpha8-digit hexFlat on white
10%#7397cc1a#F1F5FA
20%#7397cc33#E3EAF5
40%#7397cc66#C7D5EB
60%#7397cc99#ABC1E0
80%#7397cccc#8FACD6

Gradients from #7397cc

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #A0B8DC, #7397cc 45%, #223A5D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #7397cc, #805CC4);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #7397cc, #CCA873);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #B6C9E4 0%, #7397cc 45%, #223A5D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F7FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #98D9DA 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #9789D4 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #223A5D 0%, transparent 65%), #7397cc;

Monochromatic scale

Palettes built from #7397cc

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#7397cc in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
TechnologyFinanceHealthcareEnterprise SaaS
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Converts to four-color process without much drama. Proof it anyway.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 7.03:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#7397cc, answered

What color is #7397cc?

#7397cc is a balanced vivid blue, closest to Cornflower Blue (ΔE2000 3.9). It sits at 216° on the hue wheel with 47% saturation and 63% lightness, which reads as cool.

What is the RGB value of #7397cc?

rgb(115, 151, 204) — 115 red, 151 green and 204 blue out of 255, or 45.1% / 59.2% / 80% by channel.

What is #7397cc in HSL and HSV?

hsl(216, 47%, 63%) and hsv(216, 44%, 80%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #7397cc a light or a dark color?

It is a mid-tone. Relative luminance is 0.3014 and perceived brightness is 58%, so black text on it reaches 7.03:1.

Should I use black or white text on #7397cc?

Black. It scores 7.03:1 against #7397cc, versus 2.99:1 for white — AAA at any size.

Is #7397cc accessible on a white background?

#7397cc on white scores 2.99:1, which fails WCAG AA at every size. Darken it to #4676BC to reach 4.5:1, or #345990 for 7:1.

What is the complementary color of #7397cc?

#CCA873 sits directly opposite on the wheel. Softer options are the split-complements #CC7B73 and #C3CC73, which give the same contrast with far less vibration.

What colors go well with #7397cc?

For interface work: #F4F7FA as the surface, #C3D3E9 for borders, #4B6B9B for secondary text, #9A5532 as an accent and #223A5D for hover and pressed states. For a palette, the analogous pair #73C3CC and #7B73CC stays calm, while #CCA873 is the loudest partner.

What is #7397cc in CMYK for printing?

cmyk(44%, 26%, 0%, 20%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #7397cc warm or cool?

Cool — it scores 97 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #7376CC; nudged cooler, #5E8DC7.

Which Tailwind color is closest to #7397cc?

The blue family — its 500 step is #3b82f6, ΔE2000 8.3 away. That is a visible difference, so define #7397cc as a custom token rather than reaching for the built-in.

How do I use #7397cc in Tailwind CSS?

Inline it as an arbitrary value with bg-[#7397cc] or text-[#7397cc], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #7397cc with 50% opacity?

rgba(115, 151, 204, 0.5), or #7397cc80 in eight-digit hex. Over white that composites to #B9CBE6; over black, #3A4C66.

Is #7397cc a web-safe color?

No. The nearest web-safe colour is #6699CC, ΔE2000 3.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #7397cc mean?

As a blue, it reads trusted, calm, competent. The default of institutions for a reason: blue is read as stable and safe across nearly every culture that has been surveyed. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #7397cc?

The safest is same-hue elevation: linear-gradient(135deg, #A0B8DC, #7397cc 45%, #223A5D). For more colour, a short hue run to #805CC4 keeps it rich without turning muddy.

Work with #7397cc in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #7397cc at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.