#151B63#151B63

#151B63 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.4% C 0.125 H 271.3°. Best body text is #FFFFFF at 15.34:1 contrast (WCAG AA passes).

Color values

HEX	#151B63
RGB	rgb(21, 27, 99)
HSL	hsl(235, 65%, 24%)
HSV	hsv(235, 79%, 39%)
CMYK	cmyk(78.8%, 72.7%, 0%, 61.2%)
CIE-LAB	lab(14.65, 25.09, -43.06)
CIE-LCH	lch(14.65, 49.83, 300.23°)
OKLab	oklab(27.45% 0.0029 -0.1246)
OKLCH	oklch(27.45% 0.125 271.3)
XYZ	xyz(2.9526, 1.8438, 12.0023)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B63 #635D15

analogous

#154263 #151B63 #361563

triadic

#151B63 #63151B #1B6315

tetradic

#151B63 #631542 #635D15 #156336

square

#151B63 #631542 #635D15 #156336

split-complementary

#151B63 #633615 #426315

monochromatic

#050719 #0A0D31 #151B63 #202995 #2A37C8

Accessibility & contrast

On white

15.34

#151B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#151B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B63

15.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B63	#FFFFFF	#000000	##FFFFFF
##151B63	1.00	15.34	1.37	15.34
#FFFFFF	15.34	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002965

Deuteranopia (green-blind)

#002162

Tritanopia (blue-blind)

#002F3C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #151b63;
/* rgb */ color: rgb(21, 27, 99);
/* oklch */ color: oklch(27.4% 0.125 271.3);

Tailwind

colors: {
  custom: {
    50: '#615790',
    500: '#151b63',
    950: '#000000',
  },
}

SCSS

$custom: #151b63;
$custom-light: #615790;
$custom-dark: #000000;

JSON

{
  "hex": "#151b63",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 235.385,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27446,
    "c": 0.1246,
    "h": 271.3
  },
  "luminance": 0.01844
}

Semantic roles & 50–950 ramp

primary

#151B63

secondary

#9A933A

accent

#DB40E8

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030D

muted

#7A787D

Preview Lab

Preview with #151B63

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

Preview Lab → · Contrast checker → · Palette generator →