#151D8D#151D8D

#151D8D is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.178 H 268.6°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#151D8D
RGB	rgb(21, 29, 141)
HSL	hsl(236, 74%, 32%)
HSV	hsv(236, 85%, 55%)
CMYK	cmyk(85.1%, 79.4%, 0%, 44.7%)
CIE-LAB	lab(19.89, 39.36, -61.36)
CIE-LCH	lch(19.89, 72.90, 302.67°)
OKLab	oklab(32.6% -0.0043 -0.1778)
OKLCH	oklch(32.6% 0.178 268.6)
XYZ	xyz(5.5547, 2.9606, 25.4728)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D8D #8D8515

analogous

#15598D #151D8D #49158D

triadic

#151D8D #8D151D #1D8D15

tetradic

#151D8D #8D1559 #8D8515 #158D49

square

#151D8D #8D1559 #8D8515 #158D49

split-complementary

#151D8D #8D4915 #598D15

monochromatic

#050722 #0D1258 #151D8D #1D28C2 #3B46E2

Accessibility & contrast

On white

13.19

#151D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#151D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D8D

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D8D	#FFFFFF	#000000	##FFFFFF
##151D8D	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002A8B

Tritanopia (blue-blind)

#003F54

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #151d8d;
/* rgb */ color: rgb(21, 29, 141);
/* oklch */ color: oklch(32.6% 0.178 268.6);

Tailwind

colors: {
  custom: {
    50: '#6c5bb0',
    500: '#151d8d',
    950: '#000000',
  },
}

SCSS

$custom: #151d8d;
$custom-light: #6c5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#151d8d",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 141
  },
  "hsl": {
    "h": 236,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.32603,
    "c": 0.17785,
    "h": 268.6
  },
  "luminance": 0.02961
}

Semantic roles & 50–950 ramp

primary

#151D8D

secondary

#C1B83D

accent

#E437F1

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #151D8D

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

Preview Lab → · Contrast checker → · Palette generator →