#151C9E#151C9E

#151C9E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.5% C 0.199 H 268.0°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#151C9E
RGB	rgb(21, 28, 158)
HSL	hsl(237, 77%, 35%)
HSV	hsv(237, 87%, 62%)
CMYK	cmyk(86.7%, 82.3%, 0%, 38%)
CIE-LAB	lab(21.79, 45.63, -68.70)
CIE-LCH	lch(21.79, 82.47, 303.59°)
OKLab	oklab(34.54% -0.007 -0.199)
OKLCH	oklch(34.54% 0.199 268)
XYZ	xyz(6.8939, 3.4577, 32.6452)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151C9E #9E9715

analogous

#15619E #151C9E #52159E

triadic

#151C9E #9E151C #1C9E15

tetradic

#151C9E #9E1561 #9E9715 #159E52

square

#151C9E #9E1561 #9E9715 #159E52

split-complementary

#151C9E #9E5215 #619E15

monochromatic

#070932 #0E1268 #151C9E #1C26D4 #474FE7

Accessibility & contrast

On white

12.41

#151C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#151C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151C9E

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151C9E	#FFFFFF	#000000	##FFFFFF
##151C9E	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA2

Deuteranopia (green-blind)

#002D9C

Tritanopia (blue-blind)

#00465E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #151c9e;
/* rgb */ color: rgb(21, 28, 158);
/* oklch */ color: oklch(34.5% 0.199 268.0);

Tailwind

colors: {
  custom: {
    50: '#715bbc',
    500: '#151c9e',
    950: '#000000',
  },
}

SCSS

$custom: #151c9e;
$custom-light: #715bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#151c9e",
  "rgb": {
    "r": 21,
    "g": 28,
    "b": 158
  },
  "hsl": {
    "h": 236.934,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.34541,
    "c": 0.19914,
    "h": 268
  },
  "luminance": 0.03459
}

Semantic roles & 50–950 ramp

primary

#151C9E

secondary

#C7C147

accent

#E935F3

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #151C9E

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

Preview Lab → · Contrast checker → · Palette generator →