#155B71#155B71

#155B71 is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.0% C 0.075 H 224.1°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#155B71
RGB	rgb(21, 91, 113)
HSL	hsl(194, 69%, 26%)
HSV	hsv(194, 81%, 44%)
CMYK	cmyk(81.4%, 19.5%, 0%, 55.7%)
CIE-LAB	lab(35.66, -12.80, -18.53)
CIE-LCH	lch(35.66, 22.52, 235.37°)
OKLab	oklab(44% -0.0537 -0.0519)
OKLCH	oklch(44% 0.075 224.1)
XYZ	xyz(7.0297, 8.8330, 16.9540)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B71 #712B15

analogous

#157159 #155B71 #152D71

triadic

#155B71 #71155B #5B7115

tetradic

#155B71 #591571 #712B15 #2D7115

square

#155B71 #591571 #712B15 #2D7115

split-complementary

#155B71 #71152D #715915

monochromatic

#05151A #0B313D #155B71 #1F85A5 #29AED7

Accessibility & contrast

On white

7.59

#155B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#155B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B71

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B71	#FFFFFF	#000000	##FFFFFF
##155B71	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5972

Deuteranopia (green-blind)

#425071

Tritanopia (blue-blind)

#006262

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155b71;
/* rgb */ color: rgb(21, 91, 113);
/* oklch */ color: oklch(44.0% 0.075 224.1);

Tailwind

colors: {
  custom: {
    50: '#63899a',
    500: '#155b71',
    950: '#000000',
  },
}

SCSS

$custom: #155b71;
$custom-light: #63899a;
$custom-dark: #000000;

JSON

{
  "hex": "#155b71",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 113
  },
  "hsl": {
    "h": 194.348,
    "s": 68.657,
    "l": 26.275
  },
  "oklch": {
    "l": 0.44004,
    "c": 0.0747,
    "h": 224.1
  },
  "luminance": 0.08834
}

Semantic roles & 50–950 ramp

primary

#155B71

secondary

#A7553B

accent

#663CEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155B71

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

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