#151A3F#151A3F

#151A3F is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.7% C 0.070 H 274.0°. Best body text is #FFFFFF at 16.78:1 contrast (WCAG AA passes).

Color values

HEX	#151A3F
RGB	rgb(21, 26, 63)
HSL	hsl(233, 50%, 16%)
HSV	hsv(233, 67%, 25%)
CMYK	cmyk(66.7%, 58.7%, 0%, 75.3%)
CIE-LAB	lab(10.97, 11.23, -24.45)
CIE-LCH	lch(10.97, 26.91, 294.68°)
OKLab	oklab(23.68% 0.0049 -0.07)
OKLCH	oklch(23.68% 0.07 274)
XYZ	xyz(1.5756, 1.2570, 4.8613)
Luminance	0.0126 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151A3F #3F3A15

analogous

#152F3F #151A3F #25153F

triadic

#151A3F #3F151A #1A3F15

tetradic

#151A3F #3F152F #3F3A15 #153F25

square

#151A3F #3F152F #3F3A15 #153F25

split-complementary

#151A3F #3F2515 #2F3F15

monochromatic

#080917 #080917 #151A3F #242D6D #34409B

Accessibility & contrast

On white

16.78

#151A3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151A3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151A3F

16.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151A3F	#FFFFFF	#000000	##FFFFFF
##151A3F	1.00	16.78	1.25	16.78
#FFFFFF	16.78	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061F40

Deuteranopia (green-blind)

#011C3E

Tritanopia (blue-blind)

#002229

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151a3f;
/* rgb */ color: rgb(21, 26, 63);
/* oklch */ color: oklch(23.7% 0.070 274.0);

Tailwind

colors: {
  custom: {
    50: '#575674',
    500: '#151a3f',
    950: '#000000',
  },
}

SCSS

$custom: #151a3f;
$custom-light: #575674;
$custom-dark: #000000;

JSON

{
  "hex": "#151a3f",
  "rgb": {
    "r": 21,
    "g": 26,
    "b": 63
  },
  "hsl": {
    "h": 232.857,
    "s": 50,
    "l": 16.471
  },
  "oklch": {
    "l": 0.23683,
    "c": 0.07014,
    "h": 274
  },
  "luminance": 0.01257
}

Semantic roles & 50–950 ramp

primary

#151A3F

secondary

#776F39

accent

#C94EDA

background

#F5F5F7

surface

#E9E8ED

border

#C5C4C8

text

#030308

muted

#78787B

Preview Lab

Preview with #151A3F

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

Preview Lab → · Contrast checker → · Palette generator →