#155D80#155D80

#155D80 is a mid, moderate cyan. Relative luminance 0.095; OKLCH L 45.3% C 0.088 H 235.5°. Best body text is #FFFFFF at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#155D80
RGB	rgb(21, 93, 128)
HSL	hsl(200, 72%, 29%)
HSV	hsv(200, 84%, 50%)
CMYK	cmyk(83.6%, 27.3%, 0%, 49.8%)
CIE-LAB	lab(37.01, -8.31, -25.66)
CIE-LCH	lch(37.01, 26.97, 252.05°)
OKLab	oklab(45.32% -0.0499 -0.0725)
OKLCH	oklch(45.32% 0.088 235.5)
XYZ	xyz(8.1183, 9.5456, 21.8325)
Luminance	0.0955 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D80 #803815

analogous

#15806E #155D80 #152880

triadic

#155D80 #80155D #5D8015

tetradic

#155D80 #6E1580 #803815 #288015

square

#155D80 #6E1580 #803815 #288015

split-complementary

#155D80 #801528 #806E15

monochromatic

#04131A #0C374B #155D80 #1E83B5 #32A5DD

Accessibility & contrast

On white

7.22

#155D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#155D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D80

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D80	#FFFFFF	#000000	##FFFFFF
##155D80	1.00	7.22	2.91	7.22
#FFFFFF	7.22	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C5D82

Deuteranopia (green-blind)

#3E537F

Tritanopia (blue-blind)

#006669

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #155d80;
/* rgb */ color: rgb(21, 93, 128);
/* oklch */ color: oklch(45.3% 0.088 235.5);

Tailwind

colors: {
  custom: {
    50: '#668aa5',
    500: '#155d80',
    950: '#000000',
  },
}

SCSS

$custom: #155d80;
$custom-light: #668aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#155d80",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 128
  },
  "hsl": {
    "h": 199.626,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.45315,
    "c": 0.08797,
    "h": 235.5
  },
  "luminance": 0.09547
}

Semantic roles & 50–950 ramp

primary

#155D80

secondary

#B5633C

accent

#7539EF

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #155D80

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

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