#151F2F#151F2F

#151F2F is a very dark, muted blue. Relative luminance 0.013; OKLCH L 23.8% C 0.034 H 259.6°. Best body text is #FFFFFF at 16.55:1 contrast (WCAG AA passes).

Color values

HEX	#151F2F
RGB	rgb(21, 31, 47)
HSL	hsl(217, 38%, 13%)
HSV	hsv(217, 55%, 18%)
CMYK	cmyk(55.3%, 34%, 0%, 81.6%)
CIE-LAB	lab(11.58, 1.05, -12.03)
CIE-LCH	lch(11.58, 12.07, 275.00°)
OKLab	oklab(23.8% -0.0062 -0.0336)
OKLCH	oklch(23.8% 0.034 259.6)
XYZ	xyz(1.3122, 1.3446, 2.8792)
Luminance	0.0135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151F2F #2F2515

analogous

#152C2F #151F2F #18152F

triadic

#151F2F #2F151F #1F2F15

tetradic

#151F2F #2F152C #2F2515 #152F18

square

#151F2F #2F152C #2F2515 #152F18

split-complementary

#151F2F #2F1815 #2C2F15

monochromatic

#090E15 #090E15 #151F2F #283B59 #3B5784

Accessibility & contrast

On white

16.55

#151F2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#151F2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151F2F

16.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151F2F	#FFFFFF	#000000	##FFFFFF
##151F2F	1.00	16.55	1.27	16.55
#FFFFFF	16.55	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192030

Deuteranopia (green-blind)

#161E2F

Tritanopia (blue-blind)

#0B2225

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #151f2f;
/* rgb */ color: rgb(21, 31, 47);
/* oklch */ color: oklch(23.8% 0.034 259.6);

Tailwind

colors: {
  custom: {
    50: '#545a67',
    500: '#151f2f',
    950: '#000000',
  },
}

SCSS

$custom: #151f2f;
$custom-light: #545a67;
$custom-dark: #000000;

JSON

{
  "hex": "#151f2f",
  "rgb": {
    "r": 21,
    "g": 31,
    "b": 47
  },
  "hsl": {
    "h": 216.923,
    "s": 38.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.23803,
    "c": 0.0342,
    "h": 259.6
  },
  "luminance": 0.01345
}

Semantic roles & 50–950 ramp

primary

#151F2F

secondary

#65553B

accent

#A15ACE

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #151F2F

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

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