#182D59#182D59

#182D59 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.6% C 0.084 H 263.2°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#182D59
RGB	rgb(24, 45, 89)
HSL	hsl(221, 58%, 22%)
HSV	hsv(221, 73%, 35%)
CMYK	cmyk(73%, 49.4%, 0%, 65.1%)
CIE-LAB	lab(19.19, 8.37, -29.03)
CIE-LCH	lch(19.19, 30.21, 286.08°)
OKLab	oklab(30.62% -0.01 -0.0831)
OKLCH	oklch(30.62% 0.084 263.2)
XYZ	xyz(3.1176, 2.7919, 9.8239)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D59 #594418

analogous

#184E59 #182D59 #231859

triadic

#182D59 #59182D #2D5918

tetradic

#182D59 #59184E #594418 #185923

square

#182D59 #59184E #594418 #185923

split-complementary

#182D59 #592318 #4E5918

monochromatic

#060C18 #0B1529 #182D59 #254589 #325EB9

Accessibility & contrast

On white

13.48

#182D59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#182D59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D59

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D59	#FFFFFF	#000000	##FFFFFF
##182D59	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17325B

Deuteranopia (green-blind)

#0A2C58

Tritanopia (blue-blind)

#00373E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182d59;
/* rgb */ color: rgb(24, 45, 89);
/* oklch */ color: oklch(30.6% 0.084 263.2);

Tailwind

colors: {
  custom: {
    50: '#5e6588',
    500: '#182d59',
    950: '#000000',
  },
}

SCSS

$custom: #182d59;
$custom-light: #5e6588;
$custom-dark: #000000;

JSON

{
  "hex": "#182d59",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 89
  },
  "hsl": {
    "h": 220.615,
    "s": 57.522,
    "l": 22.157
  },
  "oklch": {
    "l": 0.30618,
    "c": 0.08366,
    "h": 263.2
  },
  "luminance": 0.02792
}

Semantic roles & 50–950 ramp

primary

#182D59

secondary

#90753D

accent

#AF47E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05050B

muted

#797A7C

Preview Lab

Preview with #182D59

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

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