#151C64#151C64

#151C64 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.7% C 0.125 H 271.0°. Best body text is #FFFFFF at 15.20:1 contrast (WCAG AA passes).

Color values

HEX	#151C64
RGB	rgb(21, 28, 100)
HSL	hsl(235, 65%, 24%)
HSV	hsv(235, 79%, 39%)
CMYK	cmyk(79%, 72%, 0%, 60.8%)
CIE-LAB	lab(15.01, 24.79, -43.13)
CIE-LCH	lch(15.01, 49.74, 299.89°)
OKLab	oklab(27.74% 0.0022 -0.1248)
OKLCH	oklch(27.74% 0.125 271)
XYZ	xyz(3.0240, 1.9097, 12.2634)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C64 #645D15

analogous

#154364 #151C64 #351564

triadic

#151C64 #64151C #1C6415

tetradic

#151C64 #641543 #645D15 #156435

square

#151C64 #641543 #645D15 #156435

split-complementary

#151C64 #643515 #436415

monochromatic

#050719 #0A0E31 #151C64 #202A97 #2A38C9

Accessibility & contrast

On white

15.20

#151C64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#151C64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C64

15.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C64	#FFFFFF	#000000	##FFFFFF
##151C64	1.00	15.20	1.38	15.20
#FFFFFF	15.20	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002966

Deuteranopia (green-blind)

#002263

Tritanopia (blue-blind)

#00303D

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #151c64;
/* rgb */ color: rgb(21, 28, 100);
/* oklch */ color: oklch(27.7% 0.125 271.0);

Tailwind

colors: {
  custom: {
    50: '#615891',
    500: '#151c64',
    950: '#000000',
  },
}

SCSS

$custom: #151c64;
$custom-light: #615891;
$custom-dark: #000000;

JSON

{
  "hex": "#151c64",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 100
  },
  "hsl": {
    "h": 234.684,
    "s": 65.289,
    "l": 23.725
  },
  "oklch": {
    "l": 0.27739,
    "c": 0.12479,
    "h": 271
  },
  "luminance": 0.0191
}

Semantic roles & 50–950 ramp

primary

#151C64

secondary

#9B923A

accent

#D940E8

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #151C64

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

Preview Lab → · Contrast checker → · Palette generator →