#182F5B#182F5B

#182F5B is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.3% C 0.084 H 262.0°. Best body text is #FFFFFF at 13.15:1 contrast (WCAG AA passes).

Color values

HEX	#182F5B
RGB	rgb(24, 47, 91)
HSL	hsl(219, 58%, 23%)
HSV	hsv(219, 74%, 36%)
CMYK	cmyk(73.6%, 48.4%, 0%, 64.3%)
CIE-LAB	lab(19.97, 7.75, -29.10)
CIE-LCH	lch(19.97, 30.12, 284.91°)
OKLab	oklab(31.26% -0.0117 -0.0832)
OKLCH	oklch(31.26% 0.084 262)
XYZ	xyz(3.2809, 2.9822, 10.2982)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F5B #5B4418

analogous

#18505B #182F5B #22185B

triadic

#182F5B #5B182F #2F5B18

tetradic

#182F5B #5B1850 #5B4418 #185B22

square

#182F5B #5B1850 #5B4418 #185B22

split-complementary

#182F5B #5B2218 #505B18

monochromatic

#060D18 #0B162B #182F5B #25488B #3261BC

Accessibility & contrast

On white

13.15

#182F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#182F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F5B

13.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F5B	#FFFFFF	#000000	##FFFFFF
##182F5B	1.00	13.15	1.60	13.15
#FFFFFF	13.15	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19345D

Deuteranopia (green-blind)

#0D2D5A

Tritanopia (blue-blind)

#003940

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182f5b;
/* rgb */ color: rgb(24, 47, 91);
/* oklch */ color: oklch(31.3% 0.084 262.0);

Tailwind

colors: {
  custom: {
    50: '#5e678a',
    500: '#182f5b',
    950: '#000000',
  },
}

SCSS

$custom: #182f5b;
$custom-light: #5e678a;
$custom-dark: #000000;

JSON

{
  "hex": "#182f5b",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 91
  },
  "hsl": {
    "h": 219.403,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.31264,
    "c": 0.08407,
    "h": 262
  },
  "luminance": 0.02983
}

Semantic roles & 50–950 ramp

primary

#182F5B

secondary

#92753D

accent

#AC46E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #182F5B

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

Preview Lab → · Contrast checker → · Palette generator →