#182F57#182F57

#182F57 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.078 H 260.7°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#182F57
RGB	rgb(24, 47, 87)
HSL	hsl(218, 57%, 22%)
HSV	hsv(218, 72%, 34%)
CMYK	cmyk(72.4%, 46%, 0%, 65.9%)
CIE-LAB	lab(19.70, 6.09, -26.88)
CIE-LCH	lch(19.70, 27.57, 282.77°)
OKLab	oklab(30.97% -0.0126 -0.0767)
OKLCH	oklch(30.97% 0.078 260.7)
XYZ	xyz(3.1129, 2.9150, 9.4136)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F57 #574018

analogous

#184F57 #182F57 #211857

triadic

#182F57 #57182F #2F5718

tetradic

#182F57 #57184F #574018 #185721

square

#182F57 #57184F #574018 #185721

split-complementary

#182F57 #572118 #4F5718

monochromatic

#070D18 #0B1527 #182F57 #254987 #3263B7

Accessibility & contrast

On white

13.27

#182F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#182F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F57

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F57	#FFFFFF	#000000	##FFFFFF
##182F57	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3359

Deuteranopia (green-blind)

#122D56

Tritanopia (blue-blind)

#00383E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182f57;
/* rgb */ color: rgb(24, 47, 87);
/* oklch */ color: oklch(31.0% 0.078 260.7);

Tailwind

colors: {
  custom: {
    50: '#5d6787',
    500: '#182f57',
    950: '#000000',
  },
}

SCSS

$custom: #182f57;
$custom-light: #5d6787;
$custom-dark: #000000;

JSON

{
  "hex": "#182f57",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 87
  },
  "hsl": {
    "h": 218.095,
    "s": 56.757,
    "l": 21.765
  },
  "oklch": {
    "l": 0.30966,
    "c": 0.07775,
    "h": 260.7
  },
  "luminance": 0.02915
}

Semantic roles & 50–950 ramp

primary

#182F57

secondary

#8E703D

accent

#A848E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05060B

muted

#797A7C

Preview Lab

Preview with #182F57

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

Preview Lab → · Contrast checker → · Palette generator →