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cyan · cool

#24747b

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

Token name suggestion: Slate Lagoon

RGB
36, 116, 123
HSL
185°, 55%, 31%
CMYK
71, 6, 0, 52
Luminance
0.1430

#24747b is a dark vivid cyan, 185° on the wheel and 89/100 on the cool side. Put white text on it (5.44:1). As text it scores 5.44:1 on white — safe at any size. Nearest name is Teal, nearest Tailwind family is slate.

hsl(185 55% 31%)rgb(36 116 123)Base step 800AA inkCool

At a glance

Every number on this page in one read: what #24747b is made of, how bright it looks, and which way it leans.

Hex
#24747b
Hue
185°
cyan
Saturation
55%
vivid
Lightness
31%
dark
Brightness
48%
HSV value
Perceived
39%
weighted brightness
Luminance
0.1430
WCAG relative
Temperature
Cool
89/100 cool
Color family
Cyan
Tone
Vivid
Best ink
White
5.44:1
Closest name
Teal
ΔE2000 5.8
Chroma
23.8
LCH, 0–130ish
OKLCH L
0.515
perceptual lightness
Tailwind
slate
500 · ΔE 17.6
Web-safe
#336666
nearest of 216
Where it sits
Hue185° of 360°
Saturation55%
Lightness31%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #24747b.

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
Red3%
Green87%
Blue10%

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

Every format

HEX#24747b
HEX (8-digit)#24747bff
RGBrgb(36, 116, 123)
RGBArgba(36, 116, 123, 1)
HSLhsl(185, 55%, 31%)
HSV / HSBhsv(185, 71%, 48%)
HWBhwb(185 14% 52%)
CMYKcmyk(71%, 6%, 0%, 52%)
LABlab(44.6 -21.2 -10.9)
LCHlch(44.6 23.8 207.2)
OKLCHoklch(0.515 0.076 203.5)
XYZ (D65)xyz(10.55, 14.29, 20.94)
Decimal2389115
Display P3color(display-p3 0.141 0.455 0.482)
Web-safe#336666

Copy-ready code

every platformclick to select
/* CSS */
color: #24747b;
background-color: #24747b;
/* CSS custom property */
--brand: #24747b;
/* Tailwind (arbitrary) */
class="text-[#24747b] bg-[#24747b]"
/* SCSS */
$brand: #24747b;
/* SwiftUI */
Color(red: 0.141, green: 0.455, blue: 0.482)
/* UIKit */
UIColor(red: 0.141, green: 0.455, blue: 0.482, alpha: 1)
/* Android XML */
<color name="brand">#24747B</color>
/* Android Compose */
Color(0xFF24747B)
/* Flutter */
Color(0xFF24747B)
/* Python / OpenCV (BGR) */
(123, 116, 36)
/* Python / PIL (RGB) */
(36, 116, 123)
/* Java AWT */
new Color(36, 116, 123)
/* .NET */
Color.FromArgb(255, 36, 116, 123)
/* OpenGL / Unity (0–1) */
(0.1412f, 0.4549f, 0.4824f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{36,116,123}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #24747b 85%, white);
border-color: color-mix(in oklab, #24747b 40%, transparent);
/* theme-aware in one line */
color: light-dark(#1D5D63, #D3ECEE);
/* relative colour syntax */
--hover: hsl(from #24747b 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: #F4FAFB;
  --brand-100: #E9F5F6;
  --brand-200: #CEEBEE;
  --brand-300: #A8E1E6;
  --brand-400: #7DD2D9;
  --brand-500: #51C2CC;
  --brand-600: #37B3BD;
  --brand-700: #2E959E;
  --brand-800: #24747b;
  --brand-900: #1E575C;
  --brand-950: #133639;
  --brand: #24747b;
  --brand-ink: #ffffff;
  --brand-surface: #F4FAFA;
  --brand-border: #C0E9ED;
  --brand-hover: #1C5A5F;
  --brand-pressed: #144044;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #142324;
    --brand-ink: #D3ECEE;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#F4FAFB',
        100: '#E9F5F6',
        200: '#CEEBEE',
        300: '#A8E1E6',
        400: '#7DD2D9',
        500: '#51C2CC',
        600: '#37B3BD',
        700: '#2E959E',
        800: '#24747b',
        900: '#1E575C',
        950: '#133639',
        DEFAULT: '#24747b',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #F4FAFB,
  '100': #E9F5F6,
  '200': #CEEBEE,
  '300': #A8E1E6,
  '400': #7DD2D9,
  '500': #51C2CC,
  '600': #37B3BD,
  '700': #2E959E,
  '800': #24747b,
  '900': #1E575C,
  '950': #133639,
);
$brand-base: #24747b;
$brand-ink: #ffffff;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#F4FAFB", "$type": "color" },
      "100": { "$value": "#E9F5F6", "$type": "color" },
      "200": { "$value": "#CEEBEE", "$type": "color" },
      "300": { "$value": "#A8E1E6", "$type": "color" },
      "400": { "$value": "#7DD2D9", "$type": "color" },
      "500": { "$value": "#51C2CC", "$type": "color" },
      "600": { "$value": "#37B3BD", "$type": "color" },
      "700": { "$value": "#2E959E", "$type": "color" },
      "800": { "$value": "#24747b", "$type": "color" },
      "900": { "$value": "#1E575C", "$type": "color" },
      "950": { "$value": "#133639", "$type": "color" }
    },
    "brandInk": { "$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 #24747b · 5.44:1
Use #ffffffAA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 5.44:1 · recommended
AA pass · AA large pass · AAA fail
Aa
Black text · 3.86:1
AA fail · AA large pass · AAA fail
Reading the other direction: #24747b as text scores 5.44:1 on white and 3.86:1 on black.
Best tinted ink on it, if plain black or white feels flat: #EBF8F9 at 5.01:1.

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
#24747b · 5.44:1
AA on whitealready passes
#24747b
The quick fox
#1E6267 · 7.00:1
AAA on white−5% L
#1E6267
The quick fox
#29838B · 4.71:1
AA on black+4% L
#29838B
The quick fox
#33A4AE · 7.06:1
AAA on black+13% L
#33A4AE

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #24747B 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
#24747b on white: 5.44:1
AA ✓ pass · AA-large · AAA
Aa
#24747b on black: 3.86:1
AA ✗ fail · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #24747b as text on that neutral, and that neutral as text on #24747b.

NeutralRatioBoth directions
White5.44:1AaAa
Slate 505.20:1AaAa
Slate 1004.97:1AaAa
Slate 2004.41:1AaAa
Slate 3003.67:1AaAa
Slate 4002.12:1AaAa
Slate 5001.14:1AaAa
Slate 6001.39:1AaAa
Slate 7001.90:1AaAa
Slate 8002.69:1AaAa
Slate 9003.28:1AaAa
Black3.86:1AaAa
Colour vision deficiency
true color
protanopia · #6B6F7C
deuteranopia · #5E667B
tritanopia · #007976

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. #24747b 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.

#F4FAFB
#E9F5F6
#CEEBEE
#A8E1E6
#7DD2D9
#51C2CC
#37B3BD
#2E959E
#24747b
#1E575C
#133639
Base = 800Lightest = 50 · #F4FAFBDarkest = 950 · #133639Text 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 0.019 203.5);
  --brand-100: oklch(0.94 0.030 203.5);
  --brand-200: oklch(0.88 0.045 203.5);
  --brand-300: oklch(0.80 0.059 203.5);
  --brand-400: oklch(0.72 0.070 203.5);
  --brand-500: oklch(0.64 0.076 203.5);
  --brand-600: oklch(0.56 0.076 203.5);
  --brand-700: oklch(0.48 0.071 203.5);
  --brand-800: oklch(0.40 0.064 203.5);
  --brand-900: oklch(0.32 0.053 203.5);
  --brand-950: oklch(0.24 0.042 203.5);
}

Colors that work with #24747b

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#C0E9ED
Hairlines and dividers
Muted text#4B949B
Captions on the surface
Accent#7E2131
Second voice, not a rival
Dark variant#1D5D63
Hover, pressed, headers
Light variant#EBF8F9
Selected rows, tints
Dark surface#142324
Dark-mode background
Hover#1C5A5F
One step down in lightness
Pressed#144044
Two steps down
Disabled#6D9EA2
Chroma pulled out
Focus ring#208B94
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 #24747b

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
  • Weight69/100
  • 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#7B2B24
Analogous left#247B57
Analogous right#24497B
Split-complement 1#7B2449
Split-complement 2#7B5724
Triadic 1#7B2474
Triadic 2#747B24
Tetradic#57247B
On the wheel
Base+30°−30°+120°+240°+180°185°

#24747b sits at 185°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red14.1%
Green45.5%
Blue48.2%
R · 0–255
36
0x24
G · 0–255
116
0x74
B · 0–255
123
0x7b

CMYK percentages

Cyan70.7%
Magenta5.7%
Yellow0.0%
Key (black)51.8%

Total ink coverage is 128%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#24747b text on a black background

contrast 3.86:1

Card sample

#24747b text on a white background

contrast 5.44:1

Card sample

#24747b on grey

4.97:1

#24747b on its own surface

5.16:1

#24747b on its dark surface

2.98:1

CSS3 live lab

Text font color

The quick brown fox

color: #24747b;
Background color
Panel with #24747b background
background-color: #24747b;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #24747b;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(36, 116, 123, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(36, 116, 123, 0.45);
Border & gradient
Gradient panel
border: 3px solid #24747b;
background: linear-gradient(135deg, #24747b, #243A7B);
Gradient text

Gradient headline

background: linear-gradient(90deg, #24747b, #24247B);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #24747b;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #24747b;
caret-color: #24747b;
Left rule
Pull quote or callout
border-left: 4px solid #24747b;
Ring + tint
Selected chip
background: #EBF8F9;
box-shadow: inset 0 0 0 2px #24747b;
Conic badge
68%
background: conic-gradient(#24747b 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #24747b 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(36, 116, 123, 0.5)
rgb(36 116 123 / 50%)
#24747b80
hsl(185 55% 31% / 50%)
color-mix(in srgb, #24747b 50%, transparent)
Alpha8-digit hexFlat on white
10%#24747b1a#E9F1F2
20%#24747b33#D3E3E5
40%#24747b66#A7C7CA
60%#24747b99#7CACB0
80%#24747bcc#509095

Gradients from #24747b

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, #32A1AA, #24747b 45%, #1D5D63);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #24747b, #1D2963);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #24747b, #7B2B24);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #39B7C2 0%, #24747b 45%, #1D5D63 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%, #30A369 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #2B4E93 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #1D5D63 0%, transparent 65%), #24747b;

Monochromatic scale

Palettes built from #24747b

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.

#24747b 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 3.86:1 — lift it to #29838B 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.

#24747b, answered

What color is #24747b?

#24747b is a dark vivid cyan, closest to Teal (ΔE2000 5.8). It sits at 185° on the hue wheel with 55% saturation and 31% lightness, which reads as cool.

What is the RGB value of #24747b?

rgb(36, 116, 123) — 36 red, 116 green and 123 blue out of 255, or 14.1% / 45.5% / 48.2% by channel.

What is #24747b in HSL and HSV?

hsl(185, 55%, 31%) and hsv(185, 71%, 48%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #24747b a light or a dark color?

It is a dark color. Relative luminance is 0.1430 and perceived brightness is 39%, so white text on it reaches 5.44:1.

Should I use black or white text on #24747b?

White. It scores 5.44:1 against #24747b, versus 3.86:1 for black — AA at any size.

Is #24747b accessible on a white background?

#24747b on white scores 5.44:1, which clears AA at every size but not AAA.

What is the complementary color of #24747b?

#7B2B24 sits directly opposite on the wheel. Softer options are the split-complements #7B2449 and #7B5724, which give the same contrast with far less vibration.

What colors go well with #24747b?

For interface work: #F4FAFA as the surface, #C0E9ED for borders, #4B949B for secondary text, #7E2131 as an accent and #1D5D63 for hover and pressed states. For a palette, the analogous pair #247B57 and #24497B stays calm, while #7B2B24 is the loudest partner.

What is #24747b in CMYK for printing?

cmyk(71%, 6%, 0%, 52%). This is a screen-to-ink approximation — ask your printer for a proof before committing to a run.

Is #24747b 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 #247B62; nudged cooler, #22597D.

Which Tailwind color is closest to #24747b?

The slate family — its 500 step is #64748b, ΔE2000 17.6 away. That is a visible difference, so define #24747b as a custom token rather than reaching for the built-in.

How do I use #24747b in Tailwind CSS?

Inline it as an arbitrary value with bg-[#24747b] or text-[#24747b], 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 #24747b with 50% opacity?

rgba(36, 116, 123, 0.5), or #24747b80 in eight-digit hex. Over white that composites to #92BABD; over black, #123A3E.

Is #24747b a web-safe color?

No. The nearest web-safe colour is #336666, ΔE2000 6 away. The palette only matters for legacy displays and some email clients now.

What does the color #24747b 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 #24747b?

The safest is same-hue elevation: linear-gradient(135deg, #32A1AA, #24747b 45%, #1D5D63). For more colour, a short hue run to #1D2963 keeps it rich without turning muddy.

Work with #24747b in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #24747b at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.