#031237#031237

#031237 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.8% C 0.076 H 262.6°. Best body text is #FFFFFF at 18.33:1 contrast (WCAG AA passes).

Color values

HEX	#031237
RGB	rgb(3, 18, 55)
HSL	hsl(223, 90%, 11%)
HSV	hsv(223, 95%, 22%)
CMYK	cmyk(94.5%, 67.3%, 0%, 78.4%)
CIE-LAB	lab(6.57, 10.15, -25.89)
CIE-LCH	lch(6.57, 27.80, 291.41°)
OKLab	oklab(19.76% -0.0098 -0.0753)
OKLCH	oklch(19.76% 0.076 262.6)
XYZ	xyz(0.9432, 0.7277, 3.7044)
Luminance	0.0073 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#031237 #372803

analogous

#032C37 #031237 #0E0337

triadic

#031237 #370312 #123703

tetradic

#031237 #37032C #372803 #03370E

square

#031237 #37032C #372803 #03370E

split-complementary

#031237 #370E03 #2C3703

monochromatic

#02091D #02091D #031237 #062571 #0938AB

Accessibility & contrast

On white

18.33

#031237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#031237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #031237

18.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##031237	#FFFFFF	#000000	##FFFFFF
##031237	1.00	18.33	1.15	18.33
#FFFFFF	18.33	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001738

Deuteranopia (green-blind)

#001236

Tritanopia (blue-blind)

#001B22

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #031237;
/* rgb */ color: rgb(3, 18, 55);
/* oklch */ color: oklch(19.8% 0.076 262.6);

Tailwind

colors: {
  custom: {
    50: '#4d4f6e',
    500: '#031237',
    950: '#000000',
  },
}

SCSS

$custom: #031237;
$custom-light: #4d4f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#031237",
  "rgb": {
    "r": 3,
    "g": 18,
    "b": 55
  },
  "hsl": {
    "h": 222.692,
    "s": 89.655,
    "l": 11.373
  },
  "oklch": {
    "l": 0.19755,
    "c": 0.07594,
    "h": 262.6
  },
  "luminance": 0.00728
}

Semantic roles & 50–950 ramp

primary

#031237

secondary

#7A5F1C

accent

#C129FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #031237

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

Preview Lab → · Contrast checker → · Palette generator →