#182B5E#182B5E

#182B5E is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.5% C 0.094 H 265.7°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#182B5E
RGB	rgb(24, 43, 94)
HSL	hsl(224, 59%, 23%)
HSV	hsv(224, 74%, 37%)
CMYK	cmyk(74.5%, 54.3%, 0%, 63.1%)
CIE-LAB	lab(18.93, 11.91, -32.77)
CIE-LCH	lch(18.93, 34.86, 289.97°)
OKLab	oklab(30.53% -0.0071 -0.0941)
OKLCH	oklch(30.53% 0.094 265.7)
XYZ	xyz(3.2602, 2.7298, 10.9426)
Luminance	0.0273 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B5E #5E4B18

analogous

#184E5E #182B5E #28185E

triadic

#182B5E #5E182B #2B5E18

tetradic

#182B5E #5E184E #5E4B18 #185E28

square

#182B5E #5E184E #5E4B18 #185E28

split-complementary

#182B5E #5E2818 #4E5E18

monochromatic

#060B18 #0C152D #182B5E #24418F #3158C0

Accessibility & contrast

On white

13.58

#182B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#182B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B5E

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B5E	#FFFFFF	#000000	##FFFFFF
##182B5E	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D3160

Deuteranopia (green-blind)

#002B5D

Tritanopia (blue-blind)

#003740

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182b5e;
/* rgb */ color: rgb(24, 43, 94);
/* oklch */ color: oklch(30.5% 0.094 265.7);

Tailwind

colors: {
  custom: {
    50: '#5f638c',
    500: '#182b5e',
    950: '#000000',
  },
}

SCSS

$custom: #182b5e;
$custom-light: #5f638c;
$custom-dark: #000000;

JSON

{
  "hex": "#182b5e",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 94
  },
  "hsl": {
    "h": 223.714,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.30534,
    "c": 0.09436,
    "h": 265.7
  },
  "luminance": 0.0273
}

Semantic roles & 50–950 ramp

primary

#182B5E

secondary

#947D3D

accent

#B845E3

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #182B5E

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

Preview Lab → · Contrast checker → · Palette generator →