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blue · cool

#4b6eb0

a balanced, soft blue · cool · closest name: Royal Blue

Token name suggestion: True Denim

RGB
75, 110, 176
HSL
219°, 40%, 49%
CMYK
57, 38, 0, 31
Luminance
0.1578

#4b6eb0 is a balanced soft blue, 219° on the wheel and 95/100 on the cool side. Put white text on it (5.05:1). As text it scores 5.05:1 on white — safe at any size. Nearest name is Royal Blue, nearest Tailwind family is slate.

hsl(219 40% 49%)rgb(75 110 176)Base step 600AA inkCool

At a glance

Every number on this page in one read: what #4b6eb0 is made of, how bright it looks, and which way it leans.

Hex
#4b6eb0
Hue
219°
blue
Saturation
40%
soft
Lightness
49%
balanced
Brightness
69%
HSV value
Perceived
44%
weighted brightness
Luminance
0.1578
WCAG relative
Temperature
Cool
95/100 cool
Color family
Blue
Tone
Soft
Best ink
White
5.05:1
Closest name
Royal Blue
ΔE2000 6.1
Chroma
39.7
LCH, 0–130ish
OKLCH L
0.543
perceptual lightness
Tailwind
slate
500 · ΔE 9
Web-safe
#336699
nearest of 216
Where it sits
Hue219° of 360°
Saturation40%
Lightness49%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #4b6eb0.

Temperature
Warm ← → Cool95% 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
Red9%
Green71%
Blue20%

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

Every format

HEX#4b6eb0
HEX (8-digit)#4b6eb0ff
RGBrgb(75, 110, 176)
RGBArgba(75, 110, 176, 1)
HSLhsl(219, 40%, 49%)
HSV / HSBhsv(219, 57%, 69%)
HWBhwb(219 29% 31%)
CMYKcmyk(57%, 38%, 0%, 31%)
LABlab(46.7 7.7 -38.9)
LCHlch(46.7 39.7 281.1)
OKLCHoklch(0.543 0.111 262.1)
XYZ (D65)xyz(16.31, 15.78, 43.25)
Decimal4943536
Display P3color(display-p3 0.294 0.431 0.690)
Web-safe#336699

Copy-ready code

every platformclick to select
/* CSS */
color: #4b6eb0;
background-color: #4b6eb0;
/* CSS custom property */
--brand: #4b6eb0;
/* Tailwind (arbitrary) */
class="text-[#4b6eb0] bg-[#4b6eb0]"
/* SCSS */
$brand: #4b6eb0;
/* SwiftUI */
Color(red: 0.294, green: 0.431, blue: 0.690)
/* UIKit */
UIColor(red: 0.294, green: 0.431, blue: 0.690, alpha: 1)
/* Android XML */
<color name="brand">#4B6EB0</color>
/* Android Compose */
Color(0xFF4B6EB0)
/* Flutter */
Color(0xFF4B6EB0)
/* Python / OpenCV (BGR) */
(176, 110, 75)
/* Python / PIL (RGB) */
(75, 110, 176)
/* Java AWT */
new Color(75, 110, 176)
/* .NET */
Color.FromArgb(255, 75, 110, 176)
/* OpenGL / Unity (0–1) */
(0.2941f, 0.4314f, 0.6902f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{75,110,176}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #4b6eb0 85%, white);
border-color: color-mix(in oklab, #4b6eb0 40%, transparent);
/* theme-aware in one line */
color: light-dark(#263859, #D4DDED);
/* relative colour syntax */
--hover: hsl(from #4b6eb0 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: #EBEEF4;
  --brand-200: #D2DAEA;
  --brand-300: #B0C0DD;
  --brand-400: #89A0CD;
  --brand-500: #6281BC;
  --brand-600: #4b6eb0;
  --brand-700: #3D598F;
  --brand-800: #314872;
  --brand-900: #273654;
  --brand-950: #182234;
  --brand: #4b6eb0;
  --brand-ink: #ffffff;
  --brand-surface: #F4F6FA;
  --brand-border: #C6D1E7;
  --brand-hover: #405E97;
  --brand-pressed: #364F7E;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #141924;
    --brand-ink: #D4DDED;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F7FA',
        100: '#EBEEF4',
        200: '#D2DAEA',
        300: '#B0C0DD',
        400: '#89A0CD',
        500: '#6281BC',
        600: '#4b6eb0',
        700: '#3D598F',
        800: '#314872',
        900: '#273654',
        950: '#182234',
        DEFAULT: '#4b6eb0',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F7FA,
  '100': #EBEEF4,
  '200': #D2DAEA,
  '300': #B0C0DD,
  '400': #89A0CD,
  '500': #6281BC,
  '600': #4b6eb0,
  '700': #3D598F,
  '800': #314872,
  '900': #273654,
  '950': #182234,
);
$brand-base: #4b6eb0;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5F7FA", "$type": "color" },
      "100": { "$value": "#EBEEF4", "$type": "color" },
      "200": { "$value": "#D2DAEA", "$type": "color" },
      "300": { "$value": "#B0C0DD", "$type": "color" },
      "400": { "$value": "#89A0CD", "$type": "color" },
      "500": { "$value": "#6281BC", "$type": "color" },
      "600": { "$value": "#4b6eb0", "$type": "color" },
      "700": { "$value": "#3D598F", "$type": "color" },
      "800": { "$value": "#314872", "$type": "color" },
      "900": { "$value": "#273654", "$type": "color" },
      "950": { "$value": "#182234", "$type": "color" }
    },
    "brandInk": { "$value": "#ffffff", "$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#ffffff on #4b6eb0 · 5.05:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.05:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 4.16:1
AA fail · AA large pass · AAA fail
Reading the other direction: #4b6eb0 as text scores 5.05:1 on white and 4.16:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EDF1F7 at 4.46:1.

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
#4b6eb0 · 5.05:1
AA on whitealready passes
#4b6eb0
The quick fox
#3C588C · 7.08:1
AAA on white−10% L
#3C588C
The quick fox
#5476B6 · 4.64:1
AA on black+3% L
#5476B6
The quick fox
#7B96C7 · 7.03:1
AAA on black+14% L
#7B96C7

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #4B6EB0 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
#4b6eb0 on white: 5.05:1
AA ✓ pass · AA-large · AAA
Aa
#4b6eb0 on black: 4.16:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #4b6eb0 as text on that neutral, and that neutral as text on #4b6eb0.

NeutralRatioBoth directions
White5.05:1AaAa
Slate 504.83:1AaAa
Slate 1004.61:1AaAa
Slate 2004.10:1AaAa
Slate 3003.40:1AaAa
Slate 4001.97:1AaAa
Slate 5001.06:1AaAa
Slate 6001.50:1AaAa
Slate 7002.05:1AaAa
Slate 8002.90:1AaAa
Slate 9003.53:1AaAa
Black4.16:1AaAa
Colour vision deficiency
true color
protanopia · #5374B3
deuteranopia · #466AAF
tritanopia · #007D86

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. #4b6eb0 is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F7FA
#EBEEF4
#D2DAEA
#B0C0DD
#89A0CD
#6281BC
#4b6eb0
#3D598F
#314872
#273654
#182234
Base = 600Lightest = 50 · #F5F7FADarkest = 950 · #182234Text 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 0.028 262.1);
  --brand-100: oklch(0.94 0.045 262.1);
  --brand-200: oklch(0.88 0.067 262.1);
  --brand-300: oklch(0.80 0.087 262.1);
  --brand-400: oklch(0.72 0.102 262.1);
  --brand-500: oklch(0.64 0.111 262.1);
  --brand-600: oklch(0.56 0.111 262.1);
  --brand-700: oklch(0.48 0.105 262.1);
  --brand-800: oklch(0.40 0.093 262.1);
  --brand-900: oklch(0.32 0.078 262.1);
  --brand-950: oklch(0.24 0.061 262.1);
}

Colors that work with #4b6eb0

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

Text on it#ffffff
White wins here
Surface#F4F6FA
Tinted page background
Border#C6D1E7
Hairlines and dividers
Muted text#4B669B
Captions on the surface
Accent#B57346
Second voice, not a rival
Dark variant#263859
Hover, pressed, headers
Light variant#EDF1F7
Selected rows, tints
Dark surface#141924
Dark-mode background
Hover#405E97
One step down in lightness
Pressed#364F7E
Two steps down
Disabled#A5B1C6
Chroma pulled out
Focus ring#4C75C4
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 #4b6eb0

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

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
Any size
Safe as a fill behind white type
Yes
Safe as a 1px border on white
Yes

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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. 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
  • Weight51/100
  • 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#B08D4B
Analogous left#4BA0B0
Analogous right#5A4BB0
Split-complement 1#B05A4B
Split-complement 2#A0B04B
Triadic 1#B04B6E
Triadic 2#6EB04B
Tetradic#B04BA0
On the wheel
Base+30°−30°+120°+240°+180°219°

#4b6eb0 sits at 219°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red29.4%
Green43.1%
Blue69.0%
R · 0–255
75
0x4b
G · 0–255
110
0x6e
B · 0–255
176
0xb0

CMYK percentages

Cyan57.4%
Magenta37.5%
Yellow0.0%
Key (black)31.0%

Total ink coverage is 126%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#4b6eb0 text on a black background

contrast 4.16:1

Card sample

#4b6eb0 text on a white background

contrast 5.05:1

Card sample

#4b6eb0 on grey

4.61:1

#4b6eb0 on its own surface

4.67:1

#4b6eb0 on its dark surface

3.48:1

CSS3 live lab

Text font color

The quick brown fox

color: #4b6eb0;
Background color
Panel with #4b6eb0 background
background-color: #4b6eb0;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #4b6eb0;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(75, 110, 176, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(75, 110, 176, 0.45);
Border & gradient
Gradient panel
border: 3px solid #4b6eb0;
background: linear-gradient(135deg, #4b6eb0, #6B4BB0);
Gradient text

Gradient headline

background: linear-gradient(90deg, #4b6eb0, #854BB0);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #4b6eb0;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #4b6eb0;
caret-color: #4b6eb0;
Left rule
Pull quote or callout
border-left: 4px solid #4b6eb0;
Ring + tint
Selected chip
background: #EDF1F7;
box-shadow: inset 0 0 0 2px #4b6eb0;
Conic badge
68%
background: conic-gradient(#4b6eb0 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #4b6eb0 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(75, 110, 176, 0.5)
rgb(75 110 176 / 50%)
#4b6eb080
hsl(219 40% 49% / 50%)
color-mix(in srgb, #4b6eb0 50%, transparent)
Alpha8-digit hexFlat on white
10%#4b6eb01a#EDF1F7
20%#4b6eb033#DBE2EF
40%#4b6eb066#B7C5DF
60%#4b6eb099#93A8D0
80%#4b6eb0cc#6F8BC0

Gradients from #4b6eb0

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, #7490C4, #4b6eb0 45%, #263859);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #4b6eb0, #66429A);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #4b6eb0, #B08D4B);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #8AA1CD 0%, #4b6eb0 45%, #263859 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F6FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #6DBBC1 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #755FBB 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #263859 0%, transparent 65%), #4b6eb0;

Monochromatic scale

Palettes built from #4b6eb0

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.

#4b6eb0 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

Too dim on dark surfaces at 4.16:1 — lift it to #5476B6 for body text, or reserve it for fills.

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.

#4b6eb0, answered

What color is #4b6eb0?

#4b6eb0 is a balanced soft blue, closest to Royal Blue (ΔE2000 6.1). It sits at 219° on the hue wheel with 40% saturation and 49% lightness, which reads as cool.

What is the RGB value of #4b6eb0?

rgb(75, 110, 176) — 75 red, 110 green and 176 blue out of 255, or 29.4% / 43.1% / 69% by channel.

What is #4b6eb0 in HSL and HSV?

hsl(219, 40%, 49%) and hsv(219, 57%, 69%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #4b6eb0 a light or a dark color?

It is a dark color. Relative luminance is 0.1578 and perceived brightness is 44%, so white text on it reaches 5.05:1.

Should I use black or white text on #4b6eb0?

White. It scores 5.05:1 against #4b6eb0, versus 4.16:1 for black — AA at any size.

Is #4b6eb0 accessible on a white background?

#4b6eb0 on white scores 5.05:1, which clears AA at every size but not AAA.

What is the complementary color of #4b6eb0?

#B08D4B sits directly opposite on the wheel. Softer options are the split-complements #B05A4B and #A0B04B, which give the same contrast with far less vibration.

What colors go well with #4b6eb0?

For interface work: #F4F6FA as the surface, #C6D1E7 for borders, #4B669B for secondary text, #B57346 as an accent and #263859 for hover and pressed states. For a palette, the analogous pair #4BA0B0 and #5A4BB0 stays calm, while #B08D4B is the loudest partner.

What is #4b6eb0 in CMYK for printing?

cmyk(57%, 38%, 0%, 31%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #4b6eb0 warm or cool?

Cool — it scores 95 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #4D4BB0; nudged cooler, #416AA0.

Which Tailwind color is closest to #4b6eb0?

The slate family — its 500 step is #64748b, ΔE2000 9 away. That is a visible difference, so define #4b6eb0 as a custom token rather than reaching for the built-in.

How do I use #4b6eb0 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#4b6eb0] or text-[#4b6eb0], 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 #4b6eb0 with 50% opacity?

rgba(75, 110, 176, 0.5), or #4b6eb080 in eight-digit hex. Over white that composites to #A5B7D8; over black, #263758.

Is #4b6eb0 a web-safe color?

No. The nearest web-safe colour is #336699, ΔE2000 5.7 away. The palette only matters for legacy displays and some email clients now.

What does the color #4b6eb0 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 moderate chroma the association is present but not shouted.

What gradient works with #4b6eb0?

The safest is same-hue elevation: linear-gradient(135deg, #7490C4, #4b6eb0 45%, #263859). For more colour, a short hue run to #66429A keeps it rich without turning muddy.

Work with #4b6eb0 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #4b6eb0 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.