#051B3D#051B3D

#051B3D is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 22.8% C 0.071 H 258.6°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#051B3D
RGB	rgb(5, 27, 61)
HSL	hsl(216, 85%, 13%)
HSV	hsv(216, 92%, 24%)
CMYK	cmyk(91.8%, 55.7%, 0%, 76.1%)
CIE-LAB	lab(10.21, 6.51, -24.31)
CIE-LCH	lch(10.21, 25.17, 285.00°)
OKLab	oklab(22.79% -0.014 -0.0699)
OKLCH	oklch(22.79% 0.071 258.6)
XYZ	xyz(1.2965, 1.1529, 4.5682)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#051B3D #3D2705

analogous

#05373D #051B3D #0B053D

triadic

#051B3D #3D051B #1B3D05

tetradic

#051B3D #3D0537 #3D2705 #053D0B

square

#051B3D #3D0537 #3D2705 #053D0B

split-complementary

#051B3D #3D0B05 #373D05

monochromatic

#020D1C #020D1C #051B3D #0A3476 #0E4DAE

Accessibility & contrast

On white

17.06

#051B3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#051B3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #051B3D

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##051B3D	#FFFFFF	#000000	##FFFFFF
##051B3D	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#071F3E

Deuteranopia (green-blind)

#00193C

Tritanopia (blue-blind)

#002329

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #051b3d;
/* rgb */ color: rgb(5, 27, 61);
/* oklch */ color: oklch(22.8% 0.071 258.6);

Tailwind

colors: {
  custom: {
    50: '#505673',
    500: '#051b3d',
    950: '#000000',
  },
}

SCSS

$custom: #051b3d;
$custom-light: #505673;
$custom-dark: #000000;

JSON

{
  "hex": "#051b3d",
  "rgb": {
    "r": 5,
    "g": 27,
    "b": 61
  },
  "hsl": {
    "h": 216.429,
    "s": 84.848,
    "l": 12.941
  },
  "oklch": {
    "l": 0.22793,
    "c": 0.07134,
    "h": 258.6
  },
  "luminance": 0.01153
}

Semantic roles & 50–950 ramp

primary

#051B3D

secondary

#7E5920

accent

#AA2DFB

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020308

muted

#78787B

Preview Lab

Preview with #051B3D

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

Preview Lab → · Contrast checker → · Palette generator →