#182F58#182F58

#182F58 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.079 H 261.0°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#182F58
RGB	rgb(24, 47, 88)
HSL	hsl(218, 57%, 22%)
HSV	hsv(218, 73%, 35%)
CMYK	cmyk(72.7%, 46.6%, 0%, 65.5%)
CIE-LAB	lab(19.77, 6.50, -27.44)
CIE-LCH	lch(19.77, 28.20, 283.33°)
OKLab	oklab(31.04% -0.0124 -0.0784)
OKLCH	oklch(31.04% 0.079 261)
XYZ	xyz(3.1540, 2.9315, 9.6302)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F58 #584118

analogous

#184F58 #182F58 #211858

triadic

#182F58 #58182F #2F5818

tetradic

#182F58 #58184F #584118 #185821

square

#182F58 #58184F #584118 #185821

split-complementary

#182F58 #582118 #4F5818

monochromatic

#070D18 #0B1528 #182F58 #254988 #3262B8

Accessibility & contrast

On white

13.24

#182F58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#182F58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F58

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F58	#FFFFFF	#000000	##FFFFFF
##182F58	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C335A

Deuteranopia (green-blind)

#112D57

Tritanopia (blue-blind)

#00383F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182f58;
/* rgb */ color: rgb(24, 47, 88);
/* oklch */ color: oklch(31.0% 0.079 261.0);

Tailwind

colors: {
  custom: {
    50: '#5d6787',
    500: '#182f58',
    950: '#000000',
  },
}

SCSS

$custom: #182f58;
$custom-light: #5d6787;
$custom-dark: #000000;

JSON

{
  "hex": "#182f58",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 88
  },
  "hsl": {
    "h": 218.438,
    "s": 57.143,
    "l": 21.961
  },
  "oklch": {
    "l": 0.31039,
    "c": 0.07933,
    "h": 261
  },
  "luminance": 0.02932
}

Semantic roles & 50–950 ramp

primary

#182F58

secondary

#8F713D

accent

#A947E0

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05060B

muted

#797A7C

Preview Lab

Preview with #182F58

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

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