#182B3F#182B3F

#182B3F is a dark, muted cyan. Relative luminance 0.023; OKLCH L 28.3% C 0.045 H 250.8°. Best body text is #FFFFFF at 14.42:1 contrast (WCAG AA passes).

Color values

HEX	#182B3F
RGB	rgb(24, 43, 63)
HSL	hsl(211, 45%, 17%)
HSV	hsv(211, 62%, 25%)
CMYK	cmyk(61.9%, 31.7%, 0%, 75.3%)
CIE-LAB	lab(16.90, -0.66, -15.04)
CIE-LCH	lch(16.90, 15.06, 267.48°)
OKLab	oklab(28.31% -0.0147 -0.0422)
OKLCH	oklch(28.31% 0.045 250.8)
XYZ	xyz(2.1375, 2.2807, 5.0292)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B3F #3F2C18

analogous

#183F3F #182B3F #18183F

triadic

#182B3F #3F182B #2B3F18

tetradic

#182B3F #3F183F #3F2C18 #183F18

square

#182B3F #3F183F #3F2C18 #183F18

split-complementary

#182B3F #3F1818 #3F3F18

monochromatic

#080F16 #080F16 #182B3F #29496B #3A6798

Accessibility & contrast

On white

14.42

#182B3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#182B3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B3F

14.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B3F	#FFFFFF	#000000	##FFFFFF
##182B3F	1.00	14.42	1.46	14.42
#FFFFFF	14.42	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#232C40

Deuteranopia (green-blind)

#1E283F

Tritanopia (blue-blind)

#023032

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #182b3f;
/* rgb */ color: rgb(24, 43, 63);
/* oklch */ color: oklch(28.3% 0.045 250.8);

Tailwind

colors: {
  custom: {
    50: '#586474',
    500: '#182b3f',
    950: '#000000',
  },
}

SCSS

$custom: #182b3f;
$custom-light: #586474;
$custom-dark: #000000;

JSON

{
  "hex": "#182b3f",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 63
  },
  "hsl": {
    "h": 210.769,
    "s": 44.828,
    "l": 17.059
  },
  "oklch": {
    "l": 0.28307,
    "c": 0.0447,
    "h": 250.8
  },
  "luminance": 0.02281
}

Semantic roles & 50–950 ramp

primary

#182B3F

secondary

#755A3D

accent

#9653D5

background

#F5F5F7

surface

#E9EAED

border

#C5C6C8

text

#030508

muted

#78797B

Preview Lab

Preview with #182B3F

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

Preview Lab → · Contrast checker → · Palette generator →