#182B4F#182B4F

#182B4F is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.4% C 0.070 H 262.0°. Best body text is #FFFFFF at 14.03:1 contrast (WCAG AA passes).

Color values

HEX	#182B4F
RGB	rgb(24, 43, 79)
HSL	hsl(219, 53%, 20%)
HSV	hsv(219, 70%, 31%)
CMYK	cmyk(69.6%, 45.6%, 0%, 69%)
CIE-LAB	lab(17.86, 5.71, -24.46)
CIE-LCH	lch(17.86, 25.12, 283.14°)
OKLab	oklab(29.37% -0.0098 -0.0697)
OKLCH	oklch(29.37% 0.07 262)
XYZ	xyz(2.6514, 2.4862, 7.7358)
Luminance	0.0249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B4F #4F3C18

analogous

#18464F #182B4F #21184F

triadic

#182B4F #4F182B #2B4F18

tetradic

#182B4F #4F1846 #4F3C18 #184F21

square

#182B4F #4F1846 #4F3C18 #184F21

split-complementary

#182B4F #4F2118 #464F18

monochromatic

#070D17 #0A1120 #182B4F #26457E #355EAD

Accessibility & contrast

On white

14.03

#182B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#182B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B4F

14.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B4F	#FFFFFF	#000000	##FFFFFF
##182B4F	1.00	14.03	1.50	14.03
#FFFFFF	14.03	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2E50

Deuteranopia (green-blind)

#13294E

Tritanopia (blue-blind)

#003339

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182b4f;
/* rgb */ color: rgb(24, 43, 79);
/* oklch */ color: oklch(29.4% 0.070 262.0);

Tailwind

colors: {
  custom: {
    50: '#5b6380',
    500: '#182b4f',
    950: '#000000',
  },
}

SCSS

$custom: #182b4f;
$custom-light: #5b6380;
$custom-dark: #000000;

JSON

{
  "hex": "#182b4f",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 79
  },
  "hsl": {
    "h": 219.273,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.29369,
    "c": 0.07037,
    "h": 262
  },
  "luminance": 0.02486
}

Semantic roles & 50–950 ramp

primary

#182B4F

secondary

#866D3D

accent

#AA4BDD

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #182B4F

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

Preview Lab → · Contrast checker → · Palette generator →