#051537#051537

#051537 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.070 H 262.2°. Best body text is #FFFFFF at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#051537
RGB	rgb(5, 21, 55)
HSL	hsl(221, 83%, 12%)
HSV	hsv(221, 91%, 22%)
CMYK	cmyk(90.9%, 61.8%, 0%, 78.4%)
CIE-LAB	lab(7.63, 8.45, -24.18)
CIE-LCH	lch(7.63, 25.61, 289.27°)
OKLab	oklab(20.65% -0.0096 -0.0697)
OKLCH	oklch(20.65% 0.07 262.2)
XYZ	xyz(1.0201, 0.8443, 3.7229)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#051537 #372705

analogous

#052E37 #051537 #0E0537

triadic

#051537 #370515 #153705

tetradic

#051537 #37052E #372705 #05370E

square

#051537 #37052E #372705 #05370E

split-complementary

#051537 #370E05 #2E3705

monochromatic

#030B1C #030B1C #051537 #0A2A6F #0F40A7

Accessibility & contrast

On white

17.97

#051537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#051537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #051537

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##051537	#FFFFFF	#000000	##FFFFFF
##051537	1.00	17.97	1.17	17.97
#FFFFFF	17.97	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011938

Deuteranopia (green-blind)

#001536

Tritanopia (blue-blind)

#001D23

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #051537;
/* rgb */ color: rgb(5, 21, 55);
/* oklch */ color: oklch(20.7% 0.070 262.2);

Tailwind

colors: {
  custom: {
    50: '#4e516e',
    500: '#051537',
    950: '#000000',
  },
}

SCSS

$custom: #051537;
$custom-light: #4e516e;
$custom-dark: #000000;

JSON

{
  "hex": "#051537",
  "rgb": {
    "r": 5,
    "g": 21,
    "b": 55
  },
  "hsl": {
    "h": 220.8,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.20654,
    "c": 0.07038,
    "h": 262.2
  },
  "luminance": 0.00844
}

Semantic roles & 50–950 ramp

primary

#051537

secondary

#785C20

accent

#B92EFA

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #051537

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

Preview Lab → · Contrast checker → · Palette generator →