#151B2E#151B2E

#151B2E is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.6% C 0.038 H 269.8°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#151B2E
RGB	rgb(21, 27, 46)
HSL	hsl(226, 37%, 13%)
HSV	hsv(226, 54%, 18%)
CMYK	cmyk(54.3%, 41.3%, 0%, 82%)
CIE-LAB	lab(10.11, 3.69, -13.60)
CIE-LCH	lch(10.11, 14.09, 285.19°)
OKLab	oklab(22.64% -0.0001 -0.0382)
OKLCH	oklch(22.64% 0.038 269.8)
XYZ	xyz(1.1942, 1.1405, 2.7414)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151B2E #2E2815

analogous

#15272E #151B2E #1B152E

triadic

#151B2E #2E151B #1B2E15

tetradic

#151B2E #2E1527 #2E2815 #152E1B

square

#151B2E #2E1527 #2E2815 #152E1B

split-complementary

#151B2E #2E1B15 #272E15

monochromatic

#0A0C15 #0A0C15 #151B2E #283458 #3B4C82

Accessibility & contrast

On white

17.10

#151B2E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#151B2E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151B2E

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151B2E	#FFFFFF	#000000	##FFFFFF
##151B2E	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141D2F

Deuteranopia (green-blind)

#121B2E

Tritanopia (blue-blind)

#0C1F22

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #151b2e;
/* rgb */ color: rgb(21, 27, 46);
/* oklch */ color: oklch(22.6% 0.038 269.8);

Tailwind

colors: {
  custom: {
    50: '#545766',
    500: '#151b2e',
    950: '#000000',
  },
}

SCSS

$custom: #151b2e;
$custom-light: #545766;
$custom-dark: #000000;

JSON

{
  "hex": "#151b2e",
  "rgb": {
    "r": 21,
    "g": 27,
    "b": 46
  },
  "hsl": {
    "h": 225.6,
    "s": 37.313,
    "l": 13.137
  },
  "oklch": {
    "l": 0.22639,
    "c": 0.03819,
    "h": 269.8
  },
  "luminance": 0.01141
}

Semantic roles & 50–950 ramp

primary

#151B2E

secondary

#645A3B

accent

#B25BCD

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #151B2E

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

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