#03172B#03172B

#03172B is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.0% C 0.049 H 249.7°. Best body text is #FFFFFF at 18.08:1 contrast (WCAG AA passes).

Color values

HEX	#03172B
RGB	rgb(3, 23, 43)
HSL	hsl(210, 87%, 9%)
HSV	hsv(210, 93%, 17%)
CMYK	cmyk(93%, 46.5%, 0%, 83.1%)
CIE-LAB	lab(7.29, 0.54, -15.93)
CIE-LCH	lch(7.29, 15.94, 271.95°)
OKLab	oklab(20.04% -0.0168 -0.0455)
OKLCH	oklch(20.04% 0.049 249.7)
XYZ	xyz(0.7798, 0.8065, 2.3996)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03172B #2B1703

analogous

#032B2B #03172B #03032B

triadic

#03172B #2B0317 #172B03

tetradic

#03172B #2B032B #2B1703 #032B03

square

#03172B #2B032B #2B1703 #032B03

split-complementary

#03172B #2B0303 #2B2B03

monochromatic

#020F1D #020F1D #03172B #073664 #0B549D

Accessibility & contrast

On white

18.08

#03172B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#03172B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03172B

18.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03172B	#FFFFFF	#000000	##FFFFFF
##03172B	1.00	18.08	1.16	18.08
#FFFFFF	18.08	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E182C

Deuteranopia (green-blind)

#07142B

Tritanopia (blue-blind)

#001C1E

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #03172b;
/* rgb */ color: rgb(3, 23, 43);
/* oklch */ color: oklch(20.0% 0.049 249.7);

Tailwind

colors: {
  custom: {
    50: '#495364',
    500: '#03172b',
    950: '#000000',
  },
}

SCSS

$custom: #03172b;
$custom-light: #495364;
$custom-dark: #000000;

JSON

{
  "hex": "#03172b",
  "rgb": {
    "r": 3,
    "g": 23,
    "b": 43
  },
  "hsl": {
    "h": 210,
    "s": 86.957,
    "l": 9.02
  },
  "oklch": {
    "l": 0.20035,
    "c": 0.04856,
    "h": 249.7
  },
  "luminance": 0.00807
}

Semantic roles & 50–950 ramp

primary

#03172B

secondary

#6F451B

accent

#942BFD

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #03172B

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

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