#151B41#151B41

#151B41 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.1% C 0.072 H 273.1°. Best body text is #FFFFFF at 16.60:1 contrast (WCAG AA passes).

Color values

HEX	#151B41
RGB	rgb(21, 27, 65)
HSL	hsl(232, 51%, 17%)
HSV	hsv(232, 68%, 25%)
CMYK	cmyk(67.7%, 58.5%, 0%, 74.5%)
CIE-LAB	lab(11.45, 11.29, -25.09)
CIE-LCH	lch(11.45, 27.51, 294.22°)
OKLab	oklab(24.09% 0.0038 -0.0718)
OKLCH	oklch(24.09% 0.072 273.1)
XYZ	xyz(1.6550, 1.3248, 5.1685)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B41 #413B15

analogous

#153141 #151B41 #251541

triadic

#151B41 #41151B #1B4115

tetradic

#151B41 #411531 #413B15 #154125

square

#151B41 #411531 #413B15 #154125

split-complementary

#151B41 #412515 #314115

monochromatic

#070A17 #070A17 #151B41 #242E6F #33419E

Accessibility & contrast

On white

16.60

#151B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#151B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B41

16.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B41	#FFFFFF	#000000	##FFFFFF
##151B41	1.00	16.60	1.26	16.60
#FFFFFF	16.60	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062042

Deuteranopia (green-blind)

#001D40

Tritanopia (blue-blind)

#00242B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151b41;
/* rgb */ color: rgb(21, 27, 65);
/* oklch */ color: oklch(24.1% 0.072 273.1);

Tailwind

colors: {
  custom: {
    50: '#585776',
    500: '#151b41',
    950: '#000000',
  },
}

SCSS

$custom: #151b41;
$custom-light: #585776;
$custom-dark: #000000;

JSON

{
  "hex": "#151b41",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 65
  },
  "hsl": {
    "h": 231.818,
    "s": 51.163,
    "l": 16.863
  },
  "oklch": {
    "l": 0.24093,
    "c": 0.07195,
    "h": 273.1
  },
  "luminance": 0.01325
}

Semantic roles & 50–950 ramp

primary

#151B41

secondary

#797039

accent

#C74DDB

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #151B41

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

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