#151D23#151D23

#151D23 is a very dark, near-neutral cyan. Relative luminance 0.012; OKLCH L 22.6% C 0.017 H 240.9°. Best body text is #FFFFFF at 17.05:1 contrast (WCAG AA passes).

Color values

HEX	#151D23
RGB	rgb(21, 29, 35)
HSL	hsl(206, 25%, 11%)
HSV	hsv(206, 40%, 14%)
CMYK	cmyk(40%, 17.1%, 0%, 86.3%)
CIE-LAB	lab(10.26, -1.74, -5.28)
CIE-LCH	lch(10.26, 5.56, 251.73°)
OKLab	oklab(22.56% -0.0081 -0.0145)
OKLCH	oklch(22.56% 0.017 240.9)
XYZ	xyz(1.0519, 1.1595, 1.7582)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#151D23 #231B15

analogous

#152322 #151D23 #151623

triadic

#151D23 #23151D #1D2315

tetradic

#151D23 #221523 #231B15 #162315

square

#151D23 #221523 #231B15 #162315

split-complementary

#151D23 #231516 #232215

monochromatic

#0B1013 #0B1013 #151D23 #2C3D49 #435C6F

Accessibility & contrast

On white

17.05

#151D23 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#151D23 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #151D23

17.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##151D23	#FFFFFF	#000000	##FFFFFF
##151D23	1.00	17.05	1.23	17.05
#FFFFFF	17.05	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1D23

Deuteranopia (green-blind)

#191B23

Tritanopia (blue-blind)

#111E1F

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #151d23;
/* rgb */ color: rgb(21, 29, 35);
/* oklch */ color: oklch(22.6% 0.017 240.9);

Tailwind

colors: {
  custom: {
    50: '#52585d',
    500: '#151d23',
    950: '#000000',
  },
}

SCSS

$custom: #151d23;
$custom-light: #52585d;
$custom-dark: #000000;

JSON

{
  "hex": "#151d23",
  "rgb": {
    "r": 21,
    "g": 29,
    "b": 35
  },
  "hsl": {
    "h": 205.714,
    "s": 25,
    "l": 10.98
  },
  "oklch": {
    "l": 0.22561,
    "c": 0.01658,
    "h": 240.9
  },
  "luminance": 0.0116
}

Semantic roles & 50–950 ramp

primary

#151D23

secondary

#57483D

accent

#8D66C1

background

#F4F5F5

surface

#E7E9E9

border

#C3C5C5

text

#020304

muted

#787879

Preview Lab

Preview with #151D23

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

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