#031C40#031C40

#031C40 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.2% C 0.076 H 257.5°. Best body text is #FFFFFF at 16.88:1 contrast (WCAG AA passes).

Color values

HEX	#031C40
RGB	rgb(3, 28, 64)
HSL	hsl(215, 91%, 13%)
HSV	hsv(215, 95%, 25%)
CMYK	cmyk(95.3%, 56.2%, 0%, 74.9%)
CIE-LAB	lab(10.70, 6.82, -25.64)
CIE-LCH	lch(10.70, 26.53, 284.89°)
OKLab	oklab(23.23% -0.0164 -0.0738)
OKLCH	oklch(23.23% 0.076 257.5)
XYZ	xyz(1.3779, 1.2199, 5.0123)
Luminance	0.0122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031C40 #402703

analogous

#033A40 #031C40 #080340

triadic

#031C40 #40031C #1C4003

tetradic

#031C40 #40033A #402703 #034008

square

#031C40 #40033A #402703 #034008

split-complementary

#031C40 #400803 #3A4003

monochromatic

#010D1D #010D1D #031C40 #06367A #084FB5

Accessibility & contrast

On white

16.88

#031C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#031C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031C40

16.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031C40	#FFFFFF	#000000	##FFFFFF
##031C40	1.00	16.88	1.24	16.88
#FFFFFF	16.88	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062041

Deuteranopia (green-blind)

#001A3F

Tritanopia (blue-blind)

#00252A

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #031c40;
/* rgb */ color: rgb(3, 28, 64);
/* oklch */ color: oklch(23.2% 0.076 257.5);

Tailwind

colors: {
  custom: {
    50: '#505775',
    500: '#031c40',
    950: '#000000',
  },
}

SCSS

$custom: #031c40;
$custom-light: #505775;
$custom-dark: #000000;

JSON

{
  "hex": "#031c40",
  "rgb": {
    "r": 3,
    "g": 28,
    "b": 64
  },
  "hsl": {
    "h": 215.41,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23227,
    "c": 0.07564,
    "h": 257.5
  },
  "luminance": 0.0122
}

Semantic roles & 50–950 ramp

primary

#031C40

secondary

#82591D

accent

#A729FF

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020308

muted

#78787B

Preview Lab

Preview with #031C40

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

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