Skip to content
cyan · cool

#367c8f

a dark, vivid cyan · cool · closest name: Teal

Token name suggestion: Slate Lagoon

RGB
54, 124, 143
HSL
193°, 45%, 39%
CMYK
62, 13, 0, 44
Luminance
0.1718

#367c8f is a dark vivid cyan, 193° on the wheel and 93/100 on the cool side. Put white text on it (4.73:1). As text it scores 4.73:1 on white — safe at any size. Nearest name is Teal, nearest Tailwind family is slate.

hsl(193 45% 39%)rgb(54 124 143)Base step 700AA inkCool

At a glance

Every number on this page in one read: what #367c8f is made of, how bright it looks, and which way it leans.

Hex
#367c8f
Hue
193°
cyan
Saturation
45%
vivid
Lightness
39%
dark
Brightness
56%
HSV value
Perceived
43%
weighted brightness
Luminance
0.1718
WCAG relative
Temperature
Cool
93/100 cool
Color family
Cyan
Tone
Vivid
Best ink
White
4.73:1
Closest name
Teal
ΔE2000 10.1
Chroma
23.2
LCH, 0–130ish
OKLCH L
0.550
perceptual lightness
Tailwind
slate
500 · ΔE 13.6
Web-safe
#336699
nearest of 216
Where it sits
Hue193° of 360°
Saturation45%
Lightness39%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #367c8f.

Temperature
Warm ← → Cool93% 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
Red5%
Green84%
Blue12%

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

Every format

HEX#367c8f
HEX (8-digit)#367c8fff
RGBrgb(54, 124, 143)
RGBArgba(54, 124, 143, 1)
HSLhsl(193, 45%, 39%)
HSV / HSBhsv(193, 62%, 56%)
HWBhwb(193 21% 44%)
CMYKcmyk(62%, 13%, 0%, 44%)
LABlab(48.5 -15.9 -16.9)
LCHlch(48.5 23.2 226.7)
OKLCHoklch(0.550 0.075 218.4)
XYZ (D65)xyz(13.68, 17.18, 28.58)
Decimal3570831
Display P3color(display-p3 0.212 0.486 0.561)
Web-safe#336699

Copy-ready code

every platformclick to select
/* CSS */
color: #367c8f;
background-color: #367c8f;
/* CSS custom property */
--brand: #367c8f;
/* Tailwind (arbitrary) */
class="text-[#367c8f] bg-[#367c8f]"
/* SCSS */
$brand: #367c8f;
/* SwiftUI */
Color(red: 0.212, green: 0.486, blue: 0.561)
/* UIKit */
UIColor(red: 0.212, green: 0.486, blue: 0.561, alpha: 1)
/* Android XML */
<color name="brand">#367C8F</color>
/* Android Compose */
Color(0xFF367C8F)
/* Flutter */
Color(0xFF367C8F)
/* Python / OpenCV (BGR) */
(143, 124, 54)
/* Python / PIL (RGB) */
(54, 124, 143)
/* Java AWT */
new Color(54, 124, 143)
/* .NET */
Color.FromArgb(255, 54, 124, 143)
/* OpenGL / Unity (0–1) */
(0.2118f, 0.4863f, 0.5608f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{54,124,143}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #367c8f 85%, white);
border-color: color-mix(in oklab, #367c8f 40%, transparent);
/* theme-aware in one line */
color: light-dark(#23505D, #D3E8EE);
/* relative colour syntax */
--hover: hsl(from #367c8f 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: #F5F9FA;
  --brand-100: #EAF3F5;
  --brand-200: #D1E5EB;
  --brand-300: #AED5E0;
  --brand-400: #85C1D1;
  --brand-500: #5CACC2;
  --brand-600: #439AB2;
  --brand-700: #367c8f;
  --brand-800: #2D6776;
  --brand-900: #244C57;
  --brand-950: #162F36;
  --brand: #367c8f;
  --brand-ink: #ffffff;
  --brand-surface: #F4F9FA;
  --brand-border: #C4E1E9;
  --brand-hover: #2C6575;
  --brand-pressed: #224F5B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142124;
    --brand-ink: #D3E8EE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F9FA',
        100: '#EAF3F5',
        200: '#D1E5EB',
        300: '#AED5E0',
        400: '#85C1D1',
        500: '#5CACC2',
        600: '#439AB2',
        700: '#367c8f',
        800: '#2D6776',
        900: '#244C57',
        950: '#162F36',
        DEFAULT: '#367c8f',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F9FA,
  '100': #EAF3F5,
  '200': #D1E5EB,
  '300': #AED5E0,
  '400': #85C1D1,
  '500': #5CACC2,
  '600': #439AB2,
  '700': #367c8f,
  '800': #2D6776,
  '900': #244C57,
  '950': #162F36,
);
$brand-base: #367c8f;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F5F9FA", "$type": "color" },
      "100": { "$value": "#EAF3F5", "$type": "color" },
      "200": { "$value": "#D1E5EB", "$type": "color" },
      "300": { "$value": "#AED5E0", "$type": "color" },
      "400": { "$value": "#85C1D1", "$type": "color" },
      "500": { "$value": "#5CACC2", "$type": "color" },
      "600": { "$value": "#439AB2", "$type": "color" },
      "700": { "$value": "#367c8f", "$type": "color" },
      "800": { "$value": "#2D6776", "$type": "color" },
      "900": { "$value": "#244C57", "$type": "color" },
      "950": { "$value": "#162F36", "$type": "color" }
    },
    "brandInk": { "$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 #367c8f · 4.73:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 4.73:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 4.44:1
AA fail · AA large pass · AAA fail
Reading the other direction: #367c8f as text scores 4.73:1 on white and 4.44:1 on black.
Best tinted ink on it, if plain black or white feels flat: #ECF6F8 at 4.31:1.

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
#367c8f · 4.73:1
AA on whitealready passes
#367c8f
The quick fox
#295F6E · 7.10:1
AAA on white−9% L
#295F6E
The quick fox
#377F93 · 4.62:1
AA on black+1% L
#377F93
The quick fox
#48A2BA · 7.15:1
AAA on black+12% L
#48A2BA

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #367C8F 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
#367c8f on white: 4.73:1
AA ✓ pass · AA-large · AAA
Aa
#367c8f on black: 4.44:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #367c8f as text on that neutral, and that neutral as text on #367c8f.

NeutralRatioBoth directions
White4.73:1AaAa
Slate 504.52:1AaAa
Slate 1004.32:1AaAa
Slate 2003.84:1AaAa
Slate 3003.19:1AaAa
Slate 4001.85:1AaAa
Slate 5001.01:1AaAa
Slate 6001.60:1AaAa
Slate 7002.19:1AaAa
Slate 8003.09:1AaAa
Slate 9003.77:1AaAa
Black4.44:1AaAa
Colour vision deficiency
true color
protanopia · #707990
deuteranopia · #636F8F
tritanopia · #008382

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. #367c8f is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F9FA
#EAF3F5
#D1E5EB
#AED5E0
#85C1D1
#5CACC2
#439AB2
#367c8f
#2D6776
#244C57
#162F36
Base = 700Lightest = 50 · #F5F9FADarkest = 950 · #162F36Text step on white = 700
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 0.019 218.4);
  --brand-100: oklch(0.94 0.030 218.4);
  --brand-200: oklch(0.88 0.045 218.4);
  --brand-300: oklch(0.80 0.059 218.4);
  --brand-400: oklch(0.72 0.069 218.4);
  --brand-500: oklch(0.64 0.075 218.4);
  --brand-600: oklch(0.56 0.075 218.4);
  --brand-700: oklch(0.48 0.071 218.4);
  --brand-800: oklch(0.40 0.063 218.4);
  --brand-900: oklch(0.32 0.053 218.4);
  --brand-950: oklch(0.24 0.041 218.4);
}

Colors that work with #367c8f

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#F4F9FA
Tinted page background
Border#C4E1E9
Hairlines and dividers
Muted text#4B8A9B
Captions on the surface
Accent#933236
Second voice, not a rival
Dark variant#23505D
Hover, pressed, headers
Light variant#ECF6F8
Selected rows, tints
Dark surface#142124
Dark-mode background
Hover#2C6575
One step down in lightness
Pressed#224F5B
Two steps down
Disabled#84A7B1
Chroma pulled out
Focus ring#318FA9
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 #367c8f

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

Works well for
  • Body text and links on white
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • 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.

cleantechnicalfreshclinical

Cyan reads as water, air and infrastructure: cool, hygienic, engineered.

This is a confident chroma: strong enough to lead a brand, restrained enough to live in an interface all day. The low lightness adds weight and formality.

Worth knowing

At high lightness it disappears into white surfaces and thin strokes vanish entirely.

Reads as
  • FormalityHigh
  • EnergyMedium-high
  • Weight61/100
  • 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#8F4936
Analogous left#368F75
Analogous right#364F8F
Split-complement 1#8F364F
Split-complement 2#8F7536
Triadic 1#8F367C
Triadic 2#7C8F36
Tetradic#75368F
On the wheel
Base+30°−30°+120°+240°+180°193°

#367c8f sits at 193°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red21.2%
Green48.6%
Blue56.1%
R · 0–255
54
0x36
G · 0–255
124
0x7c
B · 0–255
143
0x8f

CMYK percentages

Cyan62.2%
Magenta13.3%
Yellow0.0%
Key (black)43.9%

Total ink coverage is 119%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#367c8f text on a black background

contrast 4.44:1

Card sample

#367c8f text on a white background

contrast 4.73:1

Card sample

#367c8f on grey

4.32:1

#367c8f on its own surface

4.46:1

#367c8f on its dark surface

3.49:1

CSS3 live lab

Text font color

The quick brown fox

color: #367c8f;
Background color
Panel with #367c8f background
background-color: #367c8f;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #367c8f;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(54, 124, 143, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(54, 124, 143, 0.45);
Border & gradient
Gradient panel
border: 3px solid #367c8f;
background: linear-gradient(135deg, #367c8f, #36418F);
Gradient text

Gradient headline

background: linear-gradient(90deg, #367c8f, #42368F);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #367c8f;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #367c8f;
caret-color: #367c8f;
Left rule
Pull quote or callout
border-left: 4px solid #367c8f;
Ring + tint
Selected chip
background: #ECF6F8;
box-shadow: inset 0 0 0 2px #367c8f;
Conic badge
68%
background: conic-gradient(#367c8f 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #367c8f 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(54, 124, 143, 0.5)
rgb(54 124 143 / 50%)
#367c8f80
hsl(193 45% 39% / 50%)
color-mix(in srgb, #367c8f 50%, transparent)
Alpha8-digit hexFlat on white
10%#367c8f1a#EBF2F4
20%#367c8f33#D7E5E9
40%#367c8f66#AFCBD2
60%#367c8f99#86B0BC
80%#367c8fcc#5E96A5

Gradients from #367c8f

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, #48A2BA, #367c8f 45%, #23505D);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #367c8f, #2E3079);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #367c8f, #8F4936);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #5EADC2 0%, #367c8f 45%, #23505D 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4F9FA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #44B48A 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #3E53A5 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #23505D 0%, transparent 65%), #367c8f;

Monochromatic scale

Palettes built from #367c8f

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.

#367c8f in the real world

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

Industries
TechnologyTravelHealthcareMedia
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 4.44:1 — lift it to #377F93 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.

#367c8f, answered

What color is #367c8f?

#367c8f is a dark vivid cyan, closest to Teal (ΔE2000 10.1). It sits at 193° on the hue wheel with 45% saturation and 39% lightness, which reads as cool.

What is the RGB value of #367c8f?

rgb(54, 124, 143) — 54 red, 124 green and 143 blue out of 255, or 21.2% / 48.6% / 56.1% by channel.

What is #367c8f in HSL and HSV?

hsl(193, 45%, 39%) and hsv(193, 62%, 56%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #367c8f a light or a dark color?

It is a dark color. Relative luminance is 0.1718 and perceived brightness is 43%, so white text on it reaches 4.73:1.

Should I use black or white text on #367c8f?

White. It scores 4.73:1 against #367c8f, versus 4.44:1 for black — AA at any size.

Is #367c8f accessible on a white background?

#367c8f on white scores 4.73:1, which clears AA at every size but not AAA.

What is the complementary color of #367c8f?

#8F4936 sits directly opposite on the wheel. Softer options are the split-complements #8F364F and #8F7536, which give the same contrast with far less vibration.

What colors go well with #367c8f?

For interface work: #F4F9FA as the surface, #C4E1E9 for borders, #4B8A9B for secondary text, #933236 as an accent and #23505D for hover and pressed states. For a palette, the analogous pair #368F75 and #364F8F stays calm, while #8F4936 is the loudest partner.

What is #367c8f in CMYK for printing?

cmyk(62%, 13%, 0%, 44%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #367c8f warm or cool?

Cool — it scores 93 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #368F81; nudged cooler, #346991.

Which Tailwind color is closest to #367c8f?

The slate family — its 500 step is #64748b, ΔE2000 13.6 away. That is a visible difference, so define #367c8f as a custom token rather than reaching for the built-in.

How do I use #367c8f in Tailwind CSS?

Inline it as an arbitrary value with bg-[#367c8f] or text-[#367c8f], 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 #367c8f with 50% opacity?

rgba(54, 124, 143, 0.5), or #367c8f80 in eight-digit hex. Over white that composites to #9BBEC7; over black, #1B3E48.

Is #367c8f a web-safe color?

No. The nearest web-safe colour is #336699, ΔE2000 14.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #367c8f mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #367c8f?

The safest is same-hue elevation: linear-gradient(135deg, #48A2BA, #367c8f 45%, #23505D). For more colour, a short hue run to #2E3079 keeps it rich without turning muddy.

Work with #367c8f in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #367c8f at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.