#031240#031240

#031240 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.090 H 264.0°. Best body text is #FFFFFF at 18.04:1 contrast (WCAG AA passes).

Color values

HEX	#031240
RGB	rgb(3, 18, 64)
HSL	hsl(225, 91%, 13%)
HSV	hsv(225, 95%, 25%)
CMYK	cmyk(95.3%, 71.9%, 0%, 74.9%)
CIE-LAB	lab(7.43, 14.77, -30.97)
CIE-LCH	lch(7.43, 34.31, 295.49°)
OKLab	oklab(20.74% -0.0094 -0.0898)
OKLCH	oklch(20.74% 0.09 264)
XYZ	xyz(1.1789, 0.8220, 4.9460)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031240 #403103

analogous

#033040 #031240 #120340

triadic

#031240 #400312 #124003

tetradic

#031240 #400330 #403103 #034012

square

#031240 #400330 #403103 #034012

split-complementary

#031240 #401203 #304003

monochromatic

#01081D #01081D #031240 #06227A #0833B5

Accessibility & contrast

On white

18.04

#031240 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#031240 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031240

18.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031240	#FFFFFF	#000000	##FFFFFF
##031240	1.00	18.04	1.16	18.04
#FFFFFF	18.04	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001941

Deuteranopia (green-blind)

#00143F

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #031240;
/* rgb */ color: rgb(3, 18, 64);
/* oklch */ color: oklch(20.7% 0.090 264.0);

Tailwind

colors: {
  custom: {
    50: '#514f75',
    500: '#031240',
    950: '#000000',
  },
}

SCSS

$custom: #031240;
$custom-light: #514f75;
$custom-dark: #000000;

JSON

{
  "hex": "#031240",
  "rgb": {
    "r": 3,
    "g": 18,
    "b": 64
  },
  "hsl": {
    "h": 225.246,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.20739,
    "c": 0.0903,
    "h": 264
  },
  "luminance": 0.00822
}

Semantic roles & 50–950 ramp

primary

#031240

secondary

#82691D

accent

#CA29FF

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020108

muted

#78777B

Preview Lab

Preview with #031240

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

Preview Lab → · Contrast checker → · Palette generator →