#182B40#182B40

#182B40 is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.4% C 0.046 H 252.0°. Best body text is #FFFFFF at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#182B40
RGB	rgb(24, 43, 64)
HSL	hsl(212, 45%, 17%)
HSV	hsv(212, 63%, 25%)
CMYK	cmyk(62.5%, 32.8%, 0%, 74.9%)
CIE-LAB	lab(16.95, -0.28, -15.65)
CIE-LCH	lch(16.95, 15.65, 268.99°)
OKLab	oklab(28.37% -0.0143 -0.044)
OKLCH	oklch(28.37% 0.046 252)
XYZ	xyz(2.1657, 2.2919, 5.1778)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B40 #402D18

analogous

#183F40 #182B40 #191840

triadic

#182B40 #40182B #2B4018

tetradic

#182B40 #40183F #402D18 #184019

square

#182B40 #40183F #402D18 #184019

split-complementary

#182B40 #401918 #3F4018

monochromatic

#080F16 #080F16 #182B40 #29496D #396799

Accessibility & contrast

On white

14.40

#182B40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#182B40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B40

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B40	#FFFFFF	#000000	##FFFFFF
##182B40	1.00	14.40	1.46	14.40
#FFFFFF	14.40	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#222C41

Deuteranopia (green-blind)

#1D2840

Tritanopia (blue-blind)

#013032

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #182b40;
/* rgb */ color: rgb(24, 43, 64);
/* oklch */ color: oklch(28.4% 0.046 252.0);

Tailwind

colors: {
  custom: {
    50: '#586475',
    500: '#182b40',
    950: '#000000',
  },
}

SCSS

$custom: #182b40;
$custom-light: #586475;
$custom-dark: #000000;

JSON

{
  "hex": "#182b40",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 64
  },
  "hsl": {
    "h": 211.5,
    "s": 45.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.28367,
    "c": 0.04624,
    "h": 252
  },
  "luminance": 0.02292
}

Semantic roles & 50–950 ramp

primary

#182B40

secondary

#775B3D

accent

#9753D5

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #182B40

Body copy rendered with the generated semantic roles for this colour.

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