#182B59#182B59

#182B59 is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.1% C 0.086 H 264.8°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#182B59
RGB	rgb(24, 43, 89)
HSL	hsl(222, 58%, 22%)
HSV	hsv(222, 73%, 35%)
CMYK	cmyk(73%, 51.7%, 0%, 65.1%)
CIE-LAB	lab(18.55, 9.83, -30.05)
CIE-LCH	lch(18.55, 31.62, 288.12°)
OKLab	oklab(30.13% -0.0078 -0.0861)
OKLCH	oklch(30.13% 0.086 264.8)
XYZ	xyz(3.0431, 2.6429, 9.7990)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B59 #594618

analogous

#184B59 #182B59 #261859

triadic

#182B59 #59182B #2B5918

tetradic

#182B59 #59184B #594618 #185926

square

#182B59 #59184B #594618 #185926

split-complementary

#182B59 #592618 #4B5918

monochromatic

#060C18 #0B1429 #182B59 #254289 #325AB9

Accessibility & contrast

On white

13.74

#182B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#182B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B59

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B59	#FFFFFF	#000000	##FFFFFF
##182B59	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13305B

Deuteranopia (green-blind)

#052A58

Tritanopia (blue-blind)

#00363D

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #182b59;
/* rgb */ color: rgb(24, 43, 89);
/* oklch */ color: oklch(30.1% 0.086 264.8);

Tailwind

colors: {
  custom: {
    50: '#5e6388',
    500: '#182b59',
    950: '#000000',
  },
}

SCSS

$custom: #182b59;
$custom-light: #5e6388;
$custom-dark: #000000;

JSON

{
  "hex": "#182b59",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 89
  },
  "hsl": {
    "h": 222.462,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.30129,
    "c": 0.08646,
    "h": 264.8
  },
  "luminance": 0.02643
}

Semantic roles & 50–950 ramp

primary

#182B59

secondary

#90783D

accent

#B447E1

background

#F5F5F8

surface

#E9EAF0

border

#C5C6CB

text

#05050B

muted

#79797C

Preview Lab

Preview with #182B59

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

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