#182F5F#182F5F

#182F5F is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.6% C 0.090 H 263.0°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#182F5F
RGB	rgb(24, 47, 95)
HSL	hsl(221, 60%, 23%)
HSV	hsv(221, 75%, 37%)
CMYK	cmyk(74.7%, 50.5%, 0%, 62.7%)
CIE-LAB	lab(20.26, 9.41, -31.29)
CIE-LCH	lch(20.26, 32.67, 286.73°)
OKLab	oklab(31.57% -0.011 -0.0897)
OKLCH	oklch(31.57% 0.09 263)
XYZ	xyz(3.4580, 3.0531, 11.2313)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F5F #5F4818

analogous

#18525F #182F5F #24185F

triadic

#182F5F #5F182F #2F5F18

tetradic

#182F5F #5F1852 #5F4818 #185F24

square

#182F5F #5F1852 #5F4818 #185F24

split-complementary

#182F5F #5F2418 #525F18

monochromatic

#060C18 #0C172E #182F5F #244790 #315FC1

Accessibility & contrast

On white

13.04

#182F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#182F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F5F

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F5F	#FFFFFF	#000000	##FFFFFF
##182F5F	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#163461

Deuteranopia (green-blind)

#062E5E

Tritanopia (blue-blind)

#003A42

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #182f5f;
/* rgb */ color: rgb(24, 47, 95);
/* oklch */ color: oklch(31.6% 0.090 263.0);

Tailwind

colors: {
  custom: {
    50: '#5f678d',
    500: '#182f5f',
    950: '#000000',
  },
}

SCSS

$custom: #182f5f;
$custom-light: #5f678d;
$custom-dark: #000000;

JSON

{
  "hex": "#182f5f",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 95
  },
  "hsl": {
    "h": 220.563,
    "s": 59.664,
    "l": 23.333
  },
  "oklch": {
    "l": 0.31572,
    "c": 0.09034,
    "h": 263
  },
  "luminance": 0.03053
}

Semantic roles & 50–950 ramp

primary

#182F5F

secondary

#95793D

accent

#B045E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #182F5F

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

Preview Lab → · Contrast checker → · Palette generator →