#155F80#155F80

#155F80 is a mid, moderate cyan. Relative luminance 0.099; OKLCH L 45.8% C 0.087 H 233.3°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#155F80
RGB	rgb(21, 95, 128)
HSL	hsl(199, 72%, 29%)
HSV	hsv(199, 84%, 50%)
CMYK	cmyk(83.6%, 25.8%, 0%, 49.8%)
CIE-LAB	lab(37.66, -9.52, -24.64)
CIE-LCH	lch(37.66, 26.42, 248.88°)
OKLab	oklab(45.83% -0.0518 -0.0695)
OKLCH	oklch(45.83% 0.087 233.3)
XYZ	xyz(8.2962, 9.9013, 21.8918)
Luminance	0.0990 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F80 #803615

analogous

#15806C #155F80 #152980

triadic

#155F80 #80155F #5F8015

tetradic

#155F80 #6C1580 #803615 #298015

square

#155F80 #6C1580 #803615 #298015

split-complementary

#155F80 #801529 #806C15

monochromatic

#04141A #0C384B #155F80 #1E86B5 #32A9DD

Accessibility & contrast

On white

7.05

#155F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#155F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F80

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F80	#FFFFFF	#000000	##FFFFFF
##155F80	1.00	7.05	2.98	7.05
#FFFFFF	7.05	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5E82

Deuteranopia (green-blind)

#40547F

Tritanopia (blue-blind)

#00686A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #155f80;
/* rgb */ color: rgb(21, 95, 128);
/* oklch */ color: oklch(45.8% 0.087 233.3);

Tailwind

colors: {
  custom: {
    50: '#668ca5',
    500: '#155f80',
    950: '#000000',
  },
}

SCSS

$custom: #155f80;
$custom-light: #668ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#155f80",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 128
  },
  "hsl": {
    "h": 198.505,
    "s": 71.812,
    "l": 29.216
  },
  "oklch": {
    "l": 0.45834,
    "c": 0.08672,
    "h": 233.3
  },
  "luminance": 0.09902
}

Semantic roles & 50–950 ramp

primary

#155F80

secondary

#B5613C

accent

#7139EF

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #155F80

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

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