#153A51#153A51

#153A51 is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.058 H 239.3°. Best body text is #FFFFFF at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#153A51
RGB	rgb(21, 58, 81)
HSL	hsl(203, 59%, 20%)
HSV	hsv(203, 74%, 32%)
CMYK	cmyk(74.1%, 28.4%, 0%, 68.2%)
CIE-LAB	lab(22.93, -4.56, -17.81)
CIE-LCH	lch(22.93, 18.39, 255.63°)
OKLab	oklab(33.34% -0.0298 -0.0501)
OKLCH	oklch(33.34% 0.058 239.3)
XYZ	xyz(3.3069, 3.7793, 8.3382)
Luminance	0.0378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A51 #512C15

analogous

#15514A #153A51 #151C51

triadic

#153A51 #51153A #3A5115

tetradic

#153A51 #4A1551 #512C15 #1C5115

square

#153A51 #4A1551 #512C15 #1C5115

split-complementary

#153A51 #51151C #514A15

monochromatic

#061118 #081720 #153A51 #225D82 #2E80B2

Accessibility & contrast

On white

11.96

#153A51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#153A51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A51

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A51	#FFFFFF	#000000	##FFFFFF
##153A51	1.00	11.96	1.76	11.96
#FFFFFF	11.96	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3A52

Deuteranopia (green-blind)

#273451

Tritanopia (blue-blind)

#004042

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #153a51;
/* rgb */ color: rgb(21, 58, 81);
/* oklch */ color: oklch(33.3% 0.058 239.3);

Tailwind

colors: {
  custom: {
    50: '#5b7082',
    500: '#153a51',
    950: '#000000',
  },
}

SCSS

$custom: #153a51;
$custom-light: #5b7082;
$custom-dark: #000000;

JSON

{
  "hex": "#153a51",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 81
  },
  "hsl": {
    "h": 203,
    "s": 58.824,
    "l": 20
  },
  "oklch": {
    "l": 0.33343,
    "c": 0.05835,
    "h": 239.3
  },
  "luminance": 0.0378
}

Semantic roles & 50–950 ramp

primary

#153A51

secondary

#895839

accent

#8246E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #153A51

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

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