#151B7E#151B7E

#151B7E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.5% C 0.161 H 269.6°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#151B7E
RGB	rgb(21, 27, 126)
HSL	hsl(237, 71%, 29%)
HSV	hsv(237, 83%, 49%)
CMYK	cmyk(83.3%, 78.6%, 0%, 50.6%)
CIE-LAB	lab(17.69, 35.22, -55.56)
CIE-LCH	lch(17.69, 65.78, 302.37°)
OKLab	oklab(30.53% -0.0011 -0.1609)
OKLCH	oklch(30.53% 0.161 269.6)
XYZ	xyz(4.4658, 2.4491, 19.9720)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B7E #7E7815

analogous

#15507E #151B7E #44157E

triadic

#151B7E #7E151B #1B7E15

tetradic

#151B7E #7E1550 #7E7815 #157E44

square

#151B7E #7E1550 #7E7815 #157E44

split-complementary

#151B7E #7E4415 #507E15

monochromatic

#04061A #0C104A #151B7E #1E26B2 #313BDD

Accessibility & contrast

On white

14.09

#151B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#151B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B7E

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B7E	#FFFFFF	#000000	##FFFFFF
##151B7E	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #151b7e;
/* rgb */ color: rgb(21, 27, 126);
/* oklch */ color: oklch(30.5% 0.161 269.6);

Tailwind

colors: {
  custom: {
    50: '#6859a5',
    500: '#151b7e',
    950: '#000000',
  },
}

SCSS

$custom: #151b7e;
$custom-light: #6859a5;
$custom-dark: #000000;

JSON

{
  "hex": "#151b7e",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 126
  },
  "hsl": {
    "h": 236.571,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30528,
    "c": 0.16094,
    "h": 269.6
  },
  "luminance": 0.0245
}

Semantic roles & 50–950 ramp

primary

#151B7E

secondary

#B3AC3C

accent

#E43AEE

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #151B7E

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

Preview Lab → · Contrast checker → · Palette generator →