#183471#183471

#183471 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.2% C 0.111 H 263.2°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#183471
RGB	rgb(24, 52, 113)
HSL	hsl(221, 65%, 27%)
HSV	hsv(221, 79%, 44%)
CMYK	cmyk(78.8%, 54%, 0%, 55.7%)
CIE-LAB	lab(23.14, 13.29, -38.32)
CIE-LCH	lch(23.14, 40.56, 289.13°)
OKLab	oklab(34.2% -0.0131 -0.1102)
OKLCH	oklch(34.2% 0.111 263.2)
XYZ	xyz(4.5843, 3.8419, 16.1195)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183471 #715518

analogous

#186171 #183471 #291871

triadic

#183471 #711834 #347118

tetradic

#183471 #711861 #715518 #187129

square

#183471 #711861 #715518 #187129

split-complementary

#183471 #712918 #617118

monochromatic

#050C19 #0D1D3F #183471 #234BA3 #3064D3

Accessibility & contrast

On white

11.88

#183471 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#183471 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183471

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183471	#FFFFFF	#000000	##FFFFFF
##183471	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3B73

Deuteranopia (green-blind)

#003370

Tritanopia (blue-blind)

#00434D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #183471;
/* rgb */ color: rgb(24, 52, 113);
/* oklch */ color: oklch(34.2% 0.111 263.2);

Tailwind

colors: {
  custom: {
    50: '#636a9a',
    500: '#183471',
    950: '#000000',
  },
}

SCSS

$custom: #183471;
$custom-light: #636a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#183471",
  "rgb": {
    "r": 24,
    "g": 52,
    "b": 113
  },
  "hsl": {
    "h": 221.124,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.34204,
    "c": 0.11103,
    "h": 263.2
  },
  "luminance": 0.03842
}

Semantic roles & 50–950 ramp

primary

#183471

secondary

#A6863E

accent

#B340E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183471

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

Preview Lab → · Contrast checker → · Palette generator →