#155C81#155C81

#155C81 is a mid, moderate cyan. Relative luminance 0.094; OKLCH L 45.1% C 0.090 H 237.3°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#155C81
RGB	rgb(21, 92, 129)
HSL	hsl(201, 72%, 29%)
HSV	hsv(201, 84%, 51%)
CMYK	cmyk(83.7%, 28.7%, 0%, 49.4%)
CIE-LAB	lab(36.74, -7.32, -26.70)
CIE-LCH	lch(36.74, 27.68, 254.68°)
OKLab	oklab(45.11% -0.0485 -0.0755)
OKLCH	oklch(45.11% 0.09 237.3)
XYZ	xyz(8.0973, 9.3977, 22.1518)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155C81 #813A15

analogous

#158170 #155C81 #152681

triadic

#155C81 #81155C #5C8115

tetradic

#155C81 #701581 #813A15 #268115

square

#155C81 #701581 #813A15 #268115

split-complementary

#155C81 #811526 #817015

monochromatic

#04131A #0C364C #155C81 #1E82B6 #33A3DE

Accessibility & contrast

On white

7.29

#155C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#155C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C81

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155C81	#FFFFFF	#000000	##FFFFFF
##155C81	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5C83

Deuteranopia (green-blind)

#3C5280

Tritanopia (blue-blind)

#006569

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #155c81;
/* rgb */ color: rgb(21, 92, 129);
/* oklch */ color: oklch(45.1% 0.090 237.3);

Tailwind

colors: {
  custom: {
    50: '#668aa5',
    500: '#155c81',
    950: '#000000',
  },
}

SCSS

$custom: #155c81;
$custom-light: #668aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#155c81",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 129
  },
  "hsl": {
    "h": 200.556,
    "s": 72,
    "l": 29.412
  },
  "oklch": {
    "l": 0.45113,
    "c": 0.08976,
    "h": 237.3
  },
  "luminance": 0.09399
}

Semantic roles & 50–950 ramp

primary

#155C81

secondary

#B6663C

accent

#7739EF

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #155C81

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

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