#151C38#151C38

#151C38 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.6% C 0.055 H 271.1°. Best body text is #FFFFFF at 16.73:1 contrast (WCAG AA passes).

Color values

HEX	#151C38
RGB	rgb(21, 28, 56)
HSL	hsl(228, 45%, 15%)
HSV	hsv(228, 63%, 22%)
CMYK	cmyk(62.5%, 50%, 0%, 78%)
CIE-LAB	lab(11.10, 6.85, -19.26)
CIE-LCH	lch(11.10, 20.44, 289.57°)
OKLab	oklab(23.61% 0.0011 -0.0547)
OKLCH	oklch(23.61% 0.055 271.1)
XYZ	xyz(1.4381, 1.2754, 3.9110)
Luminance	0.0127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C38 #383115

analogous

#152D38 #151C38 #1F1538

triadic

#151C38 #38151C #1C3815

tetradic

#151C38 #38152D #383115 #15381F

square

#151C38 #38152D #383115 #15381F

split-complementary

#151C38 #381F15 #2D3815

monochromatic

#080B16 #080B16 #151C38 #263265 #364991

Accessibility & contrast

On white

16.73

#151C38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151C38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C38

16.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C38	#FFFFFF	#000000	##FFFFFF
##151C38	1.00	16.73	1.25	16.73
#FFFFFF	16.73	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101F39

Deuteranopia (green-blind)

#0C1C37

Tritanopia (blue-blind)

#052227

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151c38;
/* rgb */ color: rgb(21, 28, 56);
/* oklch */ color: oklch(23.6% 0.055 271.1);

Tailwind

colors: {
  custom: {
    50: '#55576f',
    500: '#151c38',
    950: '#000000',
  },
}

SCSS

$custom: #151c38;
$custom-light: #55576f;
$custom-dark: #000000;

JSON

{
  "hex": "#151c38",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 56
  },
  "hsl": {
    "h": 228,
    "s": 45.455,
    "l": 15.098
  },
  "oklch": {
    "l": 0.23614,
    "c": 0.05471,
    "h": 271.1
  },
  "luminance": 0.01275
}

Semantic roles & 50–950 ramp

primary

#151C38

secondary

#6F653A

accent

#BB53D5

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #151C38

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

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