Skip to content
cyan · cool

#367477

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

Token name suggestion: Slate Lagoon

RGB
54, 116, 119
HSL
183°, 38%, 34%
CMYK
55, 3, 0, 53
Luminance
0.1461

#367477 is a dark soft cyan, 183° on the wheel and 89/100 on the cool side. Put white text on it (5.36:1). As text it scores 5.36:1 on white — safe at any size. Nearest name is Teal, nearest Tailwind family is slate.

hsl(183 38% 34%)rgb(54 116 119)Base step 800AA inkCool

At a glance

Every number on this page in one read: what #367477 is made of, how bright it looks, and which way it leans.

Hex
#367477
Hue
183°
cyan
Saturation
38%
soft
Lightness
34%
dark
Brightness
47%
HSV value
Perceived
40%
weighted brightness
Luminance
0.1461
WCAG relative
Temperature
Cool
89/100 cool
Color family
Cyan
Tone
Soft
Best ink
White
5.36:1
Closest name
Teal
ΔE2000 6
Chroma
20.5
LCH, 0–130ish
OKLCH L
0.519
perceptual lightness
Tailwind
slate
500 · ΔE 17.3
Web-safe
#336666
nearest of 216
Where it sits
Hue183° of 360°
Saturation38%
Lightness34%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #367477.

Temperature
Warm ← → Cool89% 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%
Green86%
Blue9%

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

Every format

HEX#367477
HEX (8-digit)#367477ff
RGBrgb(54, 116, 119)
RGBArgba(54, 116, 119, 1)
HSLhsl(183, 38%, 34%)
HSV / HSBhsv(183, 55%, 47%)
HWBhwb(183 21% 53%)
CMYKcmyk(55%, 3%, 0%, 53%)
LABlab(45.1 -19.0 -7.8)
LCHlch(45.1 20.5 202.3)
OKLCHoklch(0.519 0.064 199.6)
XYZ (D65)xyz(11.10, 14.61, 19.68)
Decimal3568759
Display P3color(display-p3 0.212 0.455 0.467)
Web-safe#336666

Copy-ready code

every platformclick to select
/* CSS */
color: #367477;
background-color: #367477;
/* CSS custom property */
--brand: #367477;
/* Tailwind (arbitrary) */
class="text-[#367477] bg-[#367477]"
/* SCSS */
$brand: #367477;
/* SwiftUI */
Color(red: 0.212, green: 0.455, blue: 0.467)
/* UIKit */
UIColor(red: 0.212, green: 0.455, blue: 0.467, alpha: 1)
/* Android XML */
<color name="brand">#367477</color>
/* Android Compose */
Color(0xFF367477)
/* Flutter */
Color(0xFF367477)
/* Python / OpenCV (BGR) */
(119, 116, 54)
/* Python / PIL (RGB) */
(54, 116, 119)
/* Java AWT */
new Color(54, 116, 119)
/* .NET */
Color.FromArgb(255, 54, 116, 119)
/* OpenGL / Unity (0–1) */
(0.2118f, 0.4549f, 0.4667f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{54,116,119}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #367477 85%, white);
border-color: color-mix(in oklab, #367477 40%, transparent);
/* theme-aware in one line */
color: light-dark(#285558, #D5EBEC);
/* relative colour syntax */
--hover: hsl(from #367477 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: #EBF4F4;
  --brand-200: #D3E8E9;
  --brand-300: #B2DADC;
  --brand-400: #8BC8CA;
  --brand-500: #65B5B9;
  --brand-600: #4CA4A8;
  --brand-700: #40898C;
  --brand-800: #367477;
  --brand-900: #285052;
  --brand-950: #193233;
  --brand: #367477;
  --brand-ink: #ffffff;
  --brand-surface: #F4FAFA;
  --brand-border: #C7E4E6;
  --brand-hover: #2B5C5E;
  --brand-pressed: #204446;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142424;
    --brand-ink: #D5EBEC;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F9FA',
        100: '#EBF4F4',
        200: '#D3E8E9',
        300: '#B2DADC',
        400: '#8BC8CA',
        500: '#65B5B9',
        600: '#4CA4A8',
        700: '#40898C',
        800: '#367477',
        900: '#285052',
        950: '#193233',
        DEFAULT: '#367477',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F5F9FA,
  '100': #EBF4F4,
  '200': #D3E8E9,
  '300': #B2DADC,
  '400': #8BC8CA,
  '500': #65B5B9,
  '600': #4CA4A8,
  '700': #40898C,
  '800': #367477,
  '900': #285052,
  '950': #193233,
);
$brand-base: #367477;
$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": "#EBF4F4", "$type": "color" },
      "200": { "$value": "#D3E8E9", "$type": "color" },
      "300": { "$value": "#B2DADC", "$type": "color" },
      "400": { "$value": "#8BC8CA", "$type": "color" },
      "500": { "$value": "#65B5B9", "$type": "color" },
      "600": { "$value": "#4CA4A8", "$type": "color" },
      "700": { "$value": "#40898C", "$type": "color" },
      "800": { "$value": "#367477", "$type": "color" },
      "900": { "$value": "#285052", "$type": "color" },
      "950": { "$value": "#193233", "$type": "color" }
    },
    "brandInk": { "$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 #367477 · 5.36:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.36:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.92:1
AA fail · AA large pass · AAA fail
Reading the other direction: #367477 as text scores 5.36:1 on white and 3.92:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EDF7F7 at 4.91:1.

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
#367477 · 5.36:1
AA on whitealready passes
#367477
The quick fox
#2C5F62 · 7.19:1
AAA on white−6% L
#2C5F62
The quick fox
#3C8285 · 4.72:1
AA on black+4% L
#3C8285
The quick fox
#4CA4A8 · 7.18:1
AAA on black+14% L
#4CA4A8

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #367477 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
#367477 on white: 5.36:1
AA ✓ pass · AA-large · AAA
Aa
#367477 on black: 3.92:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #367477 as text on that neutral, and that neutral as text on #367477.

NeutralRatioBoth directions
White5.36:1AaAa
Slate 505.12:1AaAa
Slate 1004.89:1AaAa
Slate 2004.34:1AaAa
Slate 3003.61:1AaAa
Slate 4002.09:1AaAa
Slate 5001.13:1AaAa
Slate 6001.41:1AaAa
Slate 7001.93:1AaAa
Slate 8002.73:1AaAa
Slate 9003.33:1AaAa
Black3.92:1AaAa
Colour vision deficiency
true color
protanopia · #6D6F77
deuteranopia · #626777
tritanopia · #007875

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. #367477 is pinned to step 800; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#F5F9FA
#EBF4F4
#D3E8E9
#B2DADC
#8BC8CA
#65B5B9
#4CA4A8
#40898C
#367477
#285052
#193233
Base = 800Lightest = 50 · #F5F9FADarkest = 950 · #193233Text step on white = 800
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 0.016 199.6);
  --brand-100: oklch(0.94 0.026 199.6);
  --brand-200: oklch(0.88 0.038 199.6);
  --brand-300: oklch(0.80 0.050 199.6);
  --brand-400: oklch(0.72 0.059 199.6);
  --brand-500: oklch(0.64 0.064 199.6);
  --brand-600: oklch(0.56 0.064 199.6);
  --brand-700: oklch(0.48 0.060 199.6);
  --brand-800: oklch(0.40 0.054 199.6);
  --brand-900: oklch(0.32 0.045 199.6);
  --brand-950: oklch(0.24 0.035 199.6);
}

Colors that work with #367477

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#F4FAFA
Tinted page background
Border#C7E4E6
Hairlines and dividers
Muted text#4B979B
Captions on the surface
Accent#7A3241
Second voice, not a rival
Dark variant#285558
Hover, pressed, headers
Light variant#EDF7F7
Selected rows, tints
Dark surface#142424
Dark-mode background
Hover#2B5C5E
One step down in lightness
Pressed#204446
Two steps down
Disabled#76A5A7
Chroma pulled out
Focus ring#338A8F
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 #367477

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

Works well for
  • Body text and links on white
  • Charts, tags and secondary surfaces
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • 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.

The muted chroma softens the association — it reads considered rather than loud, which suits long-form and data-heavy screens. 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
  • Weight66/100
  • 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#773936
Analogous left#367759
Analogous right#365377
Split-complement 1#773653
Split-complement 2#775936
Triadic 1#773674
Triadic 2#747736
Tetradic#593677
On the wheel
Base+30°−30°+120°+240°+180°183°

#367477 sits at 183°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red21.2%
Green45.5%
Blue46.7%
R · 0–255
54
0x36
G · 0–255
116
0x74
B · 0–255
119
0x77

CMYK percentages

Cyan54.6%
Magenta2.5%
Yellow0.0%
Key (black)53.3%

Total ink coverage is 110%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#367477 text on a black background

contrast 3.92:1

Card sample

#367477 text on a white background

contrast 5.36:1

Card sample

#367477 on grey

4.89:1

#367477 on its own surface

5.08:1

#367477 on its dark surface

3.00:1

CSS3 live lab

Text font color

The quick brown fox

color: #367477;
Background color
Panel with #367477 background
background-color: #367477;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #367477;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(54, 116, 119, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(54, 116, 119, 0.45);
Border & gradient
Gradient panel
border: 3px solid #367477;
background: linear-gradient(135deg, #367477, #364977);
Gradient text

Gradient headline

background: linear-gradient(90deg, #367477, #363877);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #367477;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #367477;
caret-color: #367477;
Left rule
Pull quote or callout
border-left: 4px solid #367477;
Ring + tint
Selected chip
background: #EDF7F7;
box-shadow: inset 0 0 0 2px #367477;
Conic badge
68%
background: conic-gradient(#367477 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #367477 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, 116, 119, 0.5)
rgb(54 116 119 / 50%)
#36747780
hsl(183 38% 34% / 50%)
color-mix(in srgb, #367477 50%, transparent)
Alpha8-digit hexFlat on white
10%#3674771a#EBF1F1
20%#36747733#D7E3E4
40%#36747766#AFC7C9
60%#36747799#86ACAD
80%#367477cc#5E9092

Gradients from #367477

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, #499DA1, #367477 45%, #285558);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #367477, #2C3762);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #367477, #773936);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #56AEB2 0%, #367477 45%, #285558 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #F4FAFA, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #469A6D 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #3F5C8C 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #285558 0%, transparent 65%), #367477;

Monochromatic scale

Palettes built from #367477

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.

#367477 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 3.92:1 — lift it to #3C8285 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.

#367477, answered

What color is #367477?

#367477 is a dark soft cyan, closest to Teal (ΔE2000 6). It sits at 183° on the hue wheel with 38% saturation and 34% lightness, which reads as cool.

What is the RGB value of #367477?

rgb(54, 116, 119) — 54 red, 116 green and 119 blue out of 255, or 21.2% / 45.5% / 46.7% by channel.

What is #367477 in HSL and HSV?

hsl(183, 38%, 34%) and hsv(183, 55%, 47%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #367477 a light or a dark color?

It is a dark color. Relative luminance is 0.1461 and perceived brightness is 40%, so white text on it reaches 5.36:1.

Should I use black or white text on #367477?

White. It scores 5.36:1 against #367477, versus 3.92:1 for black — AA at any size.

Is #367477 accessible on a white background?

#367477 on white scores 5.36:1, which clears AA at every size but not AAA.

What is the complementary color of #367477?

#773936 sits directly opposite on the wheel. Softer options are the split-complements #773653 and #775936, which give the same contrast with far less vibration.

What colors go well with #367477?

For interface work: #F4FAFA as the surface, #C7E4E6 for borders, #4B979B for secondary text, #7A3241 as an accent and #285558 for hover and pressed states. For a palette, the analogous pair #367759 and #365377 stays calm, while #773936 is the loudest partner.

What is #367477 in CMYK for printing?

cmyk(55%, 3%, 0%, 53%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #367477 warm or cool?

Cool — it scores 89 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #367762; nudged cooler, #345D79.

Which Tailwind color is closest to #367477?

The slate family — its 500 step is #64748b, ΔE2000 17.3 away. That is a visible difference, so define #367477 as a custom token rather than reaching for the built-in.

How do I use #367477 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#367477] or text-[#367477], 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 #367477 with 50% opacity?

rgba(54, 116, 119, 0.5), or #36747780 in eight-digit hex. Over white that composites to #9BBABB; over black, #1B3A3C.

Is #367477 a web-safe color?

No. The nearest web-safe colour is #336666, ΔE2000 5.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #367477 mean?

As a cyan, it reads clean, technical, fresh. Cyan reads as water, air and infrastructure: cool, hygienic, engineered. At this moderate chroma the association is present but not shouted.

What gradient works with #367477?

The safest is same-hue elevation: linear-gradient(135deg, #499DA1, #367477 45%, #285558). For more colour, a short hue run to #2C3762 keeps it rich without turning muddy.

Work with #367477 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #367477 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.