#183251#183251

#183251 is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.3% C 0.065 H 254.1°. Best body text is #FFFFFF at 13.01:1 contrast (WCAG AA passes).

Color values

HEX	#183251
RGB	rgb(24, 50, 81)
HSL	hsl(213, 54%, 21%)
HSV	hsv(213, 70%, 32%)
CMYK	cmyk(70.4%, 38.3%, 0%, 68.2%)
CIE-LAB	lab(20.32, 1.50, -21.90)
CIE-LCH	lch(20.32, 21.95, 273.93°)
OKLab	oklab(31.32% -0.0177 -0.0621)
OKLCH	oklch(31.32% 0.065 254.1)
XYZ	xyz(3.0020, 3.0692, 8.2172)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183251 #513718

analogous

#184E51 #183251 #1A1851

triadic

#183251 #511832 #325118

tetradic

#183251 #51184E #513718 #18511A

square

#183251 #51184E #513718 #18511A

split-complementary

#183251 #511A18 #4E5118

monochromatic

#070F18 #0A1522 #183251 #264F80 #346CAF

Accessibility & contrast

On white

13.01

#183251 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#183251 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183251

13.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183251	#FFFFFF	#000000	##FFFFFF
##183251	1.00	13.01	1.61	13.01
#FFFFFF	13.01	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253452

Deuteranopia (green-blind)

#1D2F50

Tritanopia (blue-blind)

#00393D

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #183251;
/* rgb */ color: rgb(24, 50, 81);
/* oklch */ color: oklch(31.3% 0.065 254.1);

Tailwind

colors: {
  custom: {
    50: '#5c6982',
    500: '#183251',
    950: '#000000',
  },
}

SCSS

$custom: #183251;
$custom-light: #5c6982;
$custom-dark: #000000;

JSON

{
  "hex": "#183251",
  "rgb": {
    "r": 24,
    "g": 50,
    "b": 81
  },
  "hsl": {
    "h": 212.632,
    "s": 54.286,
    "l": 20.588
  },
  "oklch": {
    "l": 0.31324,
    "c": 0.06456,
    "h": 254.1
  },
  "luminance": 0.03069
}

Semantic roles & 50–950 ramp

primary

#183251

secondary

#88663D

accent

#9A4ADE

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04060A

muted

#797A7C

Preview Lab

Preview with #183251

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

Preview Lab → · Contrast checker → · Palette generator →