#151D2E#151D2E

#151D2E is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.2% C 0.035 H 264.5°. Best body text is #FFFFFF at 16.84:1 contrast (WCAG AA passes).

Color values

HEX	#151D2E
RGB	rgb(21, 29, 46)
HSL	hsl(221, 37%, 13%)
HSV	hsv(221, 54%, 18%)
CMYK	cmyk(54.3%, 37%, 0%, 82%)
CIE-LAB	lab(10.82, 2.17, -12.50)
CIE-LCH	lch(10.82, 12.69, 279.86°)
OKLab	oklab(23.19% -0.0033 -0.035)
OKLCH	oklch(23.19% 0.035 264.5)
XYZ	xyz(1.2416, 1.2353, 2.7573)
Luminance	0.0123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D2E #2E2615

analogous

#15292E #151D2E #19152E

triadic

#151D2E #2E151D #1D2E15

tetradic

#151D2E #2E1529 #2E2615 #152E19

square

#151D2E #2E1529 #2E2615 #152E19

split-complementary

#151D2E #2E1915 #292E15

monochromatic

#0A0D15 #0A0D15 #151D2E #283758 #3B5282

Accessibility & contrast

On white

16.84

#151D2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#151D2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D2E

16.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D2E	#FFFFFF	#000000	##FFFFFF
##151D2E	1.00	16.84	1.25	16.84
#FFFFFF	16.84	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#171E2F

Deuteranopia (green-blind)

#141C2E

Tritanopia (blue-blind)

#0C2123

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #151d2e;
/* rgb */ color: rgb(21, 29, 46);
/* oklch */ color: oklch(23.2% 0.035 264.5);

Tailwind

colors: {
  custom: {
    50: '#545866',
    500: '#151d2e',
    950: '#000000',
  },
}

SCSS

$custom: #151d2e;
$custom-light: #545866;
$custom-dark: #000000;

JSON

{
  "hex": "#151d2e",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 46
  },
  "hsl": {
    "h": 220.8,
    "s": 37.313,
    "l": 13.137
  },
  "oklch": {
    "l": 0.23186,
    "c": 0.03515,
    "h": 264.5
  },
  "luminance": 0.01235
}

Semantic roles & 50–950 ramp

primary

#151D2E

secondary

#64573B

accent

#A95BCD

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #151D2E

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

Preview Lab → · Contrast checker → · Palette generator →