#182A57#182A57

#182A57 is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.7% C 0.085 H 265.2°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#182A57
RGB	rgb(24, 42, 87)
HSL	hsl(223, 57%, 22%)
HSV	hsv(223, 72%, 34%)
CMYK	cmyk(72.4%, 51.7%, 0%, 65.9%)
CIE-LAB	lab(18.09, 9.74, -29.46)
CIE-LCH	lch(18.09, 31.03, 288.29°)
OKLab	oklab(29.73% -0.007 -0.0844)
OKLCH	oklch(29.73% 0.085 265.2)
XYZ	xyz(2.9244, 2.5380, 9.3507)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182A57 #574518

analogous

#184A57 #182A57 #261857

triadic

#182A57 #57182A #2A5718

tetradic

#182A57 #57184A #574518 #185726

square

#182A57 #57184A #574518 #185726

split-complementary

#182A57 #572618 #4A5718

monochromatic

#070C18 #0B1327 #182A57 #254187 #3258B7

Accessibility & contrast

On white

13.93

#182A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182A57

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182A57	#FFFFFF	#000000	##FFFFFF
##182A57	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#122F59

Deuteranopia (green-blind)

#052956

Tritanopia (blue-blind)

#00343C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182a57;
/* rgb */ color: rgb(24, 42, 87);
/* oklch */ color: oklch(29.7% 0.085 265.2);

Tailwind

colors: {
  custom: {
    50: '#5d6387',
    500: '#182a57',
    950: '#000000',
  },
}

SCSS

$custom: #182a57;
$custom-light: #5d6387;
$custom-dark: #000000;

JSON

{
  "hex": "#182a57",
  "rgb": {
    "r": 24,
    "g": 42,
    "b": 87
  },
  "hsl": {
    "h": 222.857,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.29728,
    "c": 0.08468,
    "h": 265.2
  },
  "luminance": 0.02538
}

Semantic roles & 50–950 ramp

primary

#182A57

secondary

#8E773D

accent

#B548E0

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#05050B

muted

#79797C

Preview Lab

Preview with #182A57

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

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