#151C45#151C45

#151C45 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.077 H 272.2°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#151C45
RGB	rgb(21, 28, 69)
HSL	hsl(231, 53%, 18%)
HSV	hsv(231, 70%, 27%)
CMYK	cmyk(69.6%, 59.4%, 0%, 72.9%)
CIE-LAB	lab(12.09, 12.17, -26.86)
CIE-LCH	lch(12.09, 29.49, 294.37°)
OKLab	oklab(24.68% 0.003 -0.077)
OKLCH	oklch(24.68% 0.077 272.2)
XYZ	xyz(1.7983, 1.4195, 5.8083)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C45 #453E15

analogous

#153445 #151C45 #261545

triadic

#151C45 #45151C #1C4515

tetradic

#151C45 #451534 #453E15 #154526

square

#151C45 #451534 #453E15 #154526

split-complementary

#151C45 #452615 #344515

monochromatic

#070A17 #070A17 #151C45 #232F74 #3242A3

Accessibility & contrast

On white

16.36

#151C45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#151C45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C45

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C45	#FFFFFF	#000000	##FFFFFF
##151C45	1.00	16.36	1.28	16.36
#FFFFFF	16.36	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042246

Deuteranopia (green-blind)

#001E44

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #151c45;
/* rgb */ color: rgb(21, 28, 69);
/* oklch */ color: oklch(24.7% 0.077 272.2);

Tailwind

colors: {
  custom: {
    50: '#585779',
    500: '#151c45',
    950: '#000000',
  },
}

SCSS

$custom: #151c45;
$custom-light: #585779;
$custom-dark: #000000;

JSON

{
  "hex": "#151c45",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 69
  },
  "hsl": {
    "h": 231.25,
    "s": 53.333,
    "l": 17.647
  },
  "oklch": {
    "l": 0.24678,
    "c": 0.0771,
    "h": 272.2
  },
  "luminance": 0.0142
}

Semantic roles & 50–950 ramp

primary

#151C45

secondary

#7D7339

accent

#C74BDD

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040309

muted

#79787B

Preview Lab

Preview with #151C45

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

Preview Lab → · Contrast checker → · Palette generator →