#151F38#151F38

#151F38 is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.4% C 0.050 H 266.3°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#151F38
RGB	rgb(21, 31, 56)
HSL	hsl(223, 45%, 15%)
HSV	hsv(223, 63%, 22%)
CMYK	cmyk(62.5%, 44.6%, 0%, 78%)
CIE-LAB	lab(12.12, 4.56, -17.64)
CIE-LCH	lch(12.12, 18.22, 284.48°)
OKLab	oklab(24.4% -0.0032 -0.0499)
OKLCH	oklch(24.4% 0.05 266.3)
XYZ	xyz(1.5128, 1.4248, 3.9359)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F38 #382E15

analogous

#153138 #151F38 #1C1538

triadic

#151F38 #38151F #1F3815

tetradic

#151F38 #381531 #382E15 #15381C

square

#151F38 #381531 #382E15 #15381C

split-complementary

#151F38 #381C15 #313815

monochromatic

#080C16 #080C16 #151F38 #263865 #365091

Accessibility & contrast

On white

16.34

#151F38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#151F38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F38

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F38	#FFFFFF	#000000	##FFFFFF
##151F38	1.00	16.34	1.29	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152139

Deuteranopia (green-blind)

#111E37

Tritanopia (blue-blind)

#042428

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151f38;
/* rgb */ color: rgb(21, 31, 56);
/* oklch */ color: oklch(24.4% 0.050 266.3);

Tailwind

colors: {
  custom: {
    50: '#555a6e',
    500: '#151f38',
    950: '#000000',
  },
}

SCSS

$custom: #151f38;
$custom-light: #555a6e;
$custom-dark: #000000;

JSON

{
  "hex": "#151f38",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 56
  },
  "hsl": {
    "h": 222.857,
    "s": 45.455,
    "l": 15.098
  },
  "oklch": {
    "l": 0.24398,
    "c": 0.05004,
    "h": 266.3
  },
  "luminance": 0.01425
}

Semantic roles & 50–950 ramp

primary

#151F38

secondary

#6F603A

accent

#B053D5

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151F38

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

Preview Lab → · Contrast checker → · Palette generator →