#151B7F#151B7F

#151B7F is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.162 H 269.5°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#151B7F
RGB	rgb(21, 27, 127)
HSL	hsl(237, 72%, 29%)
HSV	hsv(237, 83%, 50%)
CMYK	cmyk(83.5%, 78.7%, 0%, 50.2%)
CIE-LAB	lab(17.81, 35.58, -55.99)
CIE-LCH	lch(17.81, 66.34, 302.43°)
OKLab	oklab(30.65% -0.0013 -0.1622)
OKLCH	oklch(30.65% 0.162 269.5)
XYZ	xyz(4.5306, 2.4751, 20.3135)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B7F #7F7915

analogous

#15507F #151B7F #44157F

triadic

#151B7F #7F151B #1B7F15

tetradic

#151B7F #7F1550 #7F7915 #157F44

square

#151B7F #7F1550 #7F7915 #157F44

split-complementary

#151B7F #7F4415 #507F15

monochromatic

#04061A #0C104A #151B7F #1E26B4 #313BDD

Accessibility & contrast

On white

14.04

#151B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#151B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B7F

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B7F	#FFFFFF	#000000	##FFFFFF
##151B7F	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003182

Deuteranopia (green-blind)

#00267D

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #151b7f;
/* rgb */ color: rgb(21, 27, 127);
/* oklch */ color: oklch(30.6% 0.162 269.5);

Tailwind

colors: {
  custom: {
    50: '#6959a5',
    500: '#151b7f',
    950: '#000000',
  },
}

SCSS

$custom: #151b7f;
$custom-light: #6959a5;
$custom-dark: #000000;

JSON

{
  "hex": "#151b7f",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 127
  },
  "hsl": {
    "h": 236.604,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30646,
    "c": 0.16223,
    "h": 269.5
  },
  "luminance": 0.02476
}

Semantic roles & 50–950 ramp

primary

#151B7F

secondary

#B4AD3C

accent

#E439EE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #151B7F

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

Preview Lab → · Contrast checker → · Palette generator →