#182F59#182F59

#182F59 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.1% C 0.081 H 261.4°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#182F59
RGB	rgb(24, 47, 89)
HSL	hsl(219, 58%, 22%)
HSV	hsv(219, 73%, 35%)
CMYK	cmyk(73%, 47.2%, 0%, 65.1%)
CIE-LAB	lab(19.84, 6.92, -28.00)
CIE-LCH	lch(19.84, 28.84, 283.88°)
OKLab	oklab(31.11% -0.0122 -0.08)
OKLCH	oklch(31.11% 0.081 261.4)
XYZ	xyz(3.1957, 2.9482, 9.8499)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F59 #594218

analogous

#185059 #182F59 #221859

triadic

#182F59 #59182F #2F5918

tetradic

#182F59 #591850 #594218 #185922

square

#182F59 #591850 #594218 #185922

split-complementary

#182F59 #592218 #505918

monochromatic

#060D18 #0B1629 #182F59 #254889 #3262B9

Accessibility & contrast

On white

13.21

#182F59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#182F59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F59

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F59	#FFFFFF	#000000	##FFFFFF
##182F59	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B335B

Deuteranopia (green-blind)

#102D58

Tritanopia (blue-blind)

#00393F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182f59;
/* rgb */ color: rgb(24, 47, 89);
/* oklch */ color: oklch(31.1% 0.081 261.4);

Tailwind

colors: {
  custom: {
    50: '#5e6788',
    500: '#182f59',
    950: '#000000',
  },
}

SCSS

$custom: #182f59;
$custom-light: #5e6788;
$custom-dark: #000000;

JSON

{
  "hex": "#182f59",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 89
  },
  "hsl": {
    "h": 218.769,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.31113,
    "c": 0.08091,
    "h": 261.4
  },
  "luminance": 0.02948
}

Semantic roles & 50–950 ramp

primary

#182F59

secondary

#90723D

accent

#AA47E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #182F59

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

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