#031031#031031

#031031 is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.6% C 0.069 H 262.7°. Best body text is #FFFFFF at 18.71:1 contrast (WCAG AA passes).

Color values

HEX	#031031
RGB	rgb(3, 16, 49)
HSL	hsl(223, 88%, 10%)
HSV	hsv(223, 94%, 19%)
CMYK	cmyk(93.9%, 67.3%, 0%, 80.8%)
CIE-LAB	lab(5.52, 8.02, -23.18)
CIE-LCH	lch(5.52, 24.52, 289.08°)
OKLab	oklab(18.62% -0.0088 -0.0685)
OKLCH	oklch(18.62% 0.069 262.7)
XYZ	xyz(0.7770, 0.6116, 2.9822)
Luminance	0.0061 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.01

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031031 #312403

analogous

#032731 #031031 #0D0331

triadic

#031031 #310310 #103103

tetradic

#031031 #310327 #312403 #03310D

square

#031031 #310327 #312403 #03310D

split-complementary

#031031 #310D03 #273103

monochromatic

#02091D #02091D #031031 #07236B #0A36A4

Accessibility & contrast

On white

18.71

#031031 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#031031 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031031

18.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031031	#FFFFFF	#000000	##FFFFFF
##031031	1.00	18.71	1.12	18.71
#FFFFFF	18.71	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001432

Deuteranopia (green-blind)

#001030

Tritanopia (blue-blind)

#00181E

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #031031;
/* rgb */ color: rgb(3, 16, 49);
/* oklch */ color: oklch(18.6% 0.069 262.7);

Tailwind

colors: {
  custom: {
    50: '#4b4e69',
    500: '#031031',
    950: '#000000',
  },
}

SCSS

$custom: #031031;
$custom-light: #4b4e69;
$custom-dark: #000000;

JSON

{
  "hex": "#031031",
  "rgb": {
    "r": 3,
    "g": 16,
    "b": 49
  },
  "hsl": {
    "h": 223.043,
    "s": 88.462,
    "l": 10.196
  },
  "oklch": {
    "l": 0.18616,
    "c": 0.06905,
    "h": 262.7
  },
  "luminance": 0.00612
}

Semantic roles & 50–950 ramp

primary

#031031

secondary

#745B1B

accent

#C229FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #031031

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

Preview Lab → · Contrast checker → · Palette generator →