#155D81#155D81

#155D81 is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.4% C 0.089 H 236.2°. Best body text is #FFFFFF at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#155D81
RGB	rgb(21, 93, 129)
HSL	hsl(200, 72%, 29%)
HSV	hsv(200, 84%, 51%)
CMYK	cmyk(83.7%, 27.9%, 0%, 49.4%)
CIE-LAB	lab(37.06, -7.93, -26.19)
CIE-LCH	lch(37.06, 27.36, 253.16°)
OKLab	oklab(45.37% -0.0495 -0.074)
OKLCH	oklch(45.37% 0.089 236.2)
XYZ	xyz(8.1845, 9.5721, 22.1809)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D81 #813915

analogous

#15816F #155D81 #152781

triadic

#155D81 #81155D #5D8115

tetradic

#155D81 #6F1581 #813915 #278115

square

#155D81 #6F1581 #813915 #278115

split-complementary

#155D81 #811527 #816F15

monochromatic

#04131A #0C374C #155D81 #1E83B6 #33A5DE

Accessibility & contrast

On white

7.21

#155D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#155D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D81

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D81	#FFFFFF	#000000	##FFFFFF
##155D81	1.00	7.21	2.91	7.21
#FFFFFF	7.21	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5D83

Deuteranopia (green-blind)

#3D5380

Tritanopia (blue-blind)

#006669

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #155d81;
/* rgb */ color: rgb(21, 93, 129);
/* oklch */ color: oklch(45.4% 0.089 236.2);

Tailwind

colors: {
  custom: {
    50: '#668aa5',
    500: '#155d81',
    950: '#000000',
  },
}

SCSS

$custom: #155d81;
$custom-light: #668aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#155d81",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 129
  },
  "hsl": {
    "h": 200,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.4537,
    "c": 0.08905,
    "h": 236.2
  },
  "luminance": 0.09573
}

Semantic roles & 50–950 ramp

primary

#155D81

secondary

#B6653C

accent

#7639EF

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #155D81

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

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