#153D51#153D51

#153D51 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.2% C 0.056 H 233.7°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#153D51
RGB	rgb(21, 61, 81)
HSL	hsl(200, 59%, 20%)
HSV	hsv(200, 74%, 32%)
CMYK	cmyk(74.1%, 24.7%, 0%, 68.2%)
CIE-LAB	lab(23.97, -6.53, -16.20)
CIE-LCH	lch(23.97, 17.46, 248.05°)
OKLab	oklab(34.17% -0.0334 -0.0455)
OKLCH	oklch(34.17% 0.056 233.7)
XYZ	xyz(3.4626, 4.0906, 8.3901)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D51 #512915

analogous

#155147 #153D51 #151F51

triadic

#153D51 #51153D #3D5115

tetradic

#153D51 #471551 #512915 #1F5115

square

#153D51 #471551 #512915 #1F5115

split-complementary

#153D51 #51151F #514715

monochromatic

#061218 #081820 #153D51 #226282 #2E86B2

Accessibility & contrast

On white

11.55

#153D51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#153D51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D51

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D51	#FFFFFF	#000000	##FFFFFF
##153D51	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333C52

Deuteranopia (green-blind)

#2B3651

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153d51;
/* rgb */ color: rgb(21, 61, 81);
/* oklch */ color: oklch(34.2% 0.056 233.7);

Tailwind

colors: {
  custom: {
    50: '#5b7282',
    500: '#153d51',
    950: '#000000',
  },
}

SCSS

$custom: #153d51;
$custom-light: #5b7282;
$custom-dark: #000000;

JSON

{
  "hex": "#153d51",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 81
  },
  "hsl": {
    "h": 200,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.3417,
    "c": 0.05642,
    "h": 233.7
  },
  "luminance": 0.04091
}

Semantic roles & 50–950 ramp

primary

#153D51

secondary

#895439

accent

#7A46E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #153D51

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

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