#182B53#182B53

#182B53 is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.7% C 0.077 H 263.3°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#182B53
RGB	rgb(24, 43, 83)
HSL	hsl(221, 55%, 21%)
HSV	hsv(221, 71%, 33%)
CMYK	cmyk(71.1%, 48.2%, 0%, 67.5%)
CIE-LAB	lab(18.13, 7.35, -26.73)
CIE-LCH	lch(18.13, 27.72, 285.38°)
OKLab	oklab(29.67% -0.0089 -0.0763)
OKLCH	oklch(29.67% 0.077 263.3)
XYZ	xyz(2.8014, 2.5462, 8.5258)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B53 #534018

analogous

#184853 #182B53 #221853

triadic

#182B53 #53182B #2B5318

tetradic

#182B53 #531848 #534018 #185322

square

#182B53 #531848 #534018 #185322

split-complementary

#182B53 #532218 #485318

monochromatic

#070C18 #0A1224 #182B53 #264482 #335CB2

Accessibility & contrast

On white

13.91

#182B53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#182B53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B53

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B53	#FFFFFF	#000000	##FFFFFF
##182B53	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182F55

Deuteranopia (green-blind)

#0E2A52

Tritanopia (blue-blind)

#00343B

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182b53;
/* rgb */ color: rgb(24, 43, 83);
/* oklch */ color: oklch(29.7% 0.077 263.3);

Tailwind

colors: {
  custom: {
    50: '#5c6383',
    500: '#182b53',
    950: '#000000',
  },
}

SCSS

$custom: #182b53;
$custom-light: #5c6383;
$custom-dark: #000000;

JSON

{
  "hex": "#182b53",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 83
  },
  "hsl": {
    "h": 220.678,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.29665,
    "c": 0.07684,
    "h": 263.3
  },
  "luminance": 0.02546
}

Semantic roles & 50–950 ramp

primary

#182B53

secondary

#8A713D

accent

#AE49DE

background

#F5F5F8

surface

#E9EAEF

border

#C5C6CA

text

#04050B

muted

#79797C

Preview Lab

Preview with #182B53

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

Preview Lab → · Contrast checker → · Palette generator →