#151D37#151D37

#151D37 is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.8% C 0.051 H 269.3°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#151D37
RGB	rgb(21, 29, 55)
HSL	hsl(226, 45%, 15%)
HSV	hsv(226, 62%, 22%)
CMYK	cmyk(61.8%, 47.3%, 0%, 78.4%)
CIE-LAB	lab(11.37, 5.68, -18.12)
CIE-LCH	lch(11.37, 18.99, 287.41°)
OKLab	oklab(23.8% -0.0006 -0.0513)
OKLCH	oklch(23.8% 0.051 269.3)
XYZ	xyz(1.4380, 1.3139, 3.7915)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D37 #372F15

analogous

#152E37 #151D37 #1E1537

triadic

#151D37 #37151D #1D3715

tetradic

#151D37 #37152E #372F15 #15371E

square

#151D37 #37152E #372F15 #15371E

split-complementary

#151D37 #371E15 #2E3715

monochromatic

#080C16 #080C16 #151D37 #263463 #374C90

Accessibility & contrast

On white

16.63

#151D37 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#151D37 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D37

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D37	#FFFFFF	#000000	##FFFFFF
##151D37	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#122038

Deuteranopia (green-blind)

#0F1D36

Tritanopia (blue-blind)

#052327

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #151d37;
/* rgb */ color: rgb(21, 29, 55);
/* oklch */ color: oklch(23.8% 0.051 269.3);

Tailwind

colors: {
  custom: {
    50: '#55586e',
    500: '#151d37',
    950: '#000000',
  },
}

SCSS

$custom: #151d37;
$custom-light: #55586e;
$custom-dark: #000000;

JSON

{
  "hex": "#151d37",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 55
  },
  "hsl": {
    "h": 225.882,
    "s": 44.737,
    "l": 14.902
  },
  "oklch": {
    "l": 0.23799,
    "c": 0.05134,
    "h": 269.3
  },
  "luminance": 0.01314
}

Semantic roles & 50–950 ramp

primary

#151D37

secondary

#6E623A

accent

#B653D4

background

#F5F5F6

surface

#E9E9EB

border

#C5C5C6

text

#030307

muted

#78787A

Preview Lab

Preview with #151D37

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

Preview Lab → · Contrast checker → · Palette generator →