#153D57#153D57

#153D57 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.5% C 0.064 H 240.8°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#153D57
RGB	rgb(21, 61, 87)
HSL	hsl(204, 61%, 21%)
HSV	hsv(204, 76%, 34%)
CMYK	cmyk(75.9%, 29.9%, 0%, 65.9%)
CIE-LAB	lab(24.27, -4.17, -19.67)
CIE-LCH	lch(24.27, 20.10, 258.03°)
OKLab	oklab(34.51% -0.0311 -0.0555)
OKLCH	oklch(34.51% 0.064 240.8)
XYZ	xyz(3.6976, 4.1846, 9.6278)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D57 #572F15

analogous

#155750 #153D57 #151C57

triadic

#153D57 #57153D #3D5715

tetradic

#153D57 #501557 #572F15 #1C5715

square

#153D57 #501557 #572F15 #1C5715

split-complementary

#153D57 #57151C #575015

monochromatic

#061119 #091A26 #153D57 #216088 #2D82BA

Accessibility & contrast

On white

11.43

#153D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#153D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D57

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D57	#FFFFFF	#000000	##FFFFFF
##153D57	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313D58

Deuteranopia (green-blind)

#283757

Tritanopia (blue-blind)

#004346

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153d57;
/* rgb */ color: rgb(21, 61, 87);
/* oklch */ color: oklch(34.5% 0.064 240.8);

Tailwind

colors: {
  custom: {
    50: '#5c7286',
    500: '#153d57',
    950: '#000000',
  },
}

SCSS

$custom: #153d57;
$custom-light: #5c7286;
$custom-dark: #000000;

JSON

{
  "hex": "#153d57",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 87
  },
  "hsl": {
    "h": 203.636,
    "s": 61.111,
    "l": 21.176
  },
  "oklch": {
    "l": 0.34511,
    "c": 0.06359,
    "h": 240.8
  },
  "luminance": 0.04185
}

Semantic roles & 50–950 ramp

primary

#153D57

secondary

#8F5B39

accent

#8344E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #153D57

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

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