#031133#031133

#031133 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.1% C 0.071 H 262.4°. Best body text is #FFFFFF at 18.55:1 contrast (WCAG AA passes).

Color values

HEX	#031133
RGB	rgb(3, 17, 51)
HSL	hsl(223, 89%, 11%)
HSV	hsv(223, 94%, 20%)
CMYK	cmyk(94.1%, 66.7%, 0%, 80%)
CIE-LAB	lab(5.95, 8.55, -23.96)
CIE-LCH	lch(5.95, 25.44, 289.64°)
OKLab	oklab(19.08% -0.0094 -0.0702)
OKLCH	oklch(19.08% 0.071 262.4)
XYZ	xyz(0.8353, 0.6592, 3.2145)
Luminance	0.0066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.79

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031133 #332503

analogous

#032933 #031133 #0D0333

triadic

#031133 #330311 #113303

tetradic

#031133 #330329 #332503 #03330D

square

#031133 #330329 #332503 #03330D

split-complementary

#031133 #330D03 #293303

monochromatic

#020A1D #020A1D #031133 #06246D #0A38A7

Accessibility & contrast

On white

18.55

#031133 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#031133 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031133

18.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031133	#FFFFFF	#000000	##FFFFFF
##031133	1.00	18.55	1.13	18.55
#FFFFFF	18.55	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001634

Deuteranopia (green-blind)

#001132

Tritanopia (blue-blind)

#001A1F

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #031133;
/* rgb */ color: rgb(3, 17, 51);
/* oklch */ color: oklch(19.1% 0.071 262.4);

Tailwind

colors: {
  custom: {
    50: '#4c4e6b',
    500: '#031133',
    950: '#000000',
  },
}

SCSS

$custom: #031133;
$custom-light: #4c4e6b;
$custom-dark: #000000;

JSON

{
  "hex": "#031133",
  "rgb": {
    "r": 3,
    "g": 17,
    "b": 51
  },
  "hsl": {
    "h": 222.5,
    "s": 88.889,
    "l": 10.588
  },
  "oklch": {
    "l": 0.19083,
    "c": 0.07086,
    "h": 262.4
  },
  "luminance": 0.00659
}

Semantic roles & 50–950 ramp

primary

#031133

secondary

#765C1C

accent

#C129FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #031133

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

Preview Lab → · Contrast checker → · Palette generator →