#031831#031831

#031831 is a very dark, muted cyan. Relative luminance 0.009; OKLCH L 20.8% C 0.057 H 253.6°. Best body text is #FFFFFF at 17.81:1 contrast (WCAG AA passes).

Color values

HEX	#031831
RGB	rgb(3, 24, 49)
HSL	hsl(213, 88%, 10%)
HSV	hsv(213, 94%, 19%)
CMYK	cmyk(93.9%, 51%, 0%, 80.8%)
CIE-LAB	lab(8.08, 2.71, -19.09)
CIE-LCH	lch(8.08, 19.28, 278.09°)
OKLab	oklab(20.81% -0.0161 -0.0547)
OKLCH	oklch(20.81% 0.057 253.6)
XYZ	xyz(0.9184, 0.8943, 3.0293)
Luminance	0.0089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031831 #311C03

analogous

#032F31 #031831 #050331

triadic

#031831 #310318 #183103

tetradic

#031831 #31032F #311C03 #033105

square

#031831 #31032F #311C03 #033105

split-complementary

#031831 #310503 #2F3103

monochromatic

#020E1D #020E1D #031831 #07346B #0A50A4

Accessibility & contrast

On white

17.81

#031831 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#031831 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031831

17.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031831	#FFFFFF	#000000	##FFFFFF
##031831	1.00	17.81	1.18	17.81
#FFFFFF	17.81	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B1A32

Deuteranopia (green-blind)

#041631

Tritanopia (blue-blind)

#001E22

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #031831;
/* rgb */ color: rgb(3, 24, 49);
/* oklch */ color: oklch(20.8% 0.057 253.6);

Tailwind

colors: {
  custom: {
    50: '#4b5469',
    500: '#031831',
    950: '#000000',
  },
}

SCSS

$custom: #031831;
$custom-light: #4b5469;
$custom-dark: #000000;

JSON

{
  "hex": "#031831",
  "rgb": {
    "r": 3,
    "g": 24,
    "b": 49
  },
  "hsl": {
    "h": 212.609,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.20814,
    "c": 0.05701,
    "h": 253.6
  },
  "luminance": 0.00894
}

Semantic roles & 50–950 ramp

primary

#031831

secondary

#744C1B

accent

#9D29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #031831

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

Preview Lab → · Contrast checker → · Palette generator →