#155B6F#155B6F

#155B6F is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 43.9% C 0.073 H 221.8°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#155B6F
RGB	rgb(21, 91, 111)
HSL	hsl(193, 68%, 26%)
HSV	hsv(193, 81%, 44%)
CMYK	cmyk(81.1%, 18%, 0%, 56.5%)
CIE-LAB	lab(35.57, -13.54, -17.42)
CIE-LCH	lch(35.57, 22.06, 232.16°)
OKLab	oklab(43.91% -0.0545 -0.0488)
OKLCH	oklch(43.91% 0.073 221.8)
XYZ	xyz(6.9184, 8.7885, 16.3676)
Luminance	0.0879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B6F #6F2915

analogous

#156F56 #155B6F #152E6F

triadic

#155B6F #6F155B #5B6F15

tetradic

#155B6F #56156F #6F2915 #2E6F15

square

#155B6F #56156F #6F2915 #2E6F15

split-complementary

#155B6F #6F152E #6F5615

monochromatic

#05151A #0B313C #155B6F #1F85A2 #28AFD6

Accessibility & contrast

On white

7.61

#155B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#155B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B6F

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B6F	#FFFFFF	#000000	##FFFFFF
##155B6F	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5970

Deuteranopia (green-blind)

#43506F

Tritanopia (blue-blind)

#006161

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155b6f;
/* rgb */ color: rgb(21, 91, 111);
/* oklch */ color: oklch(43.9% 0.073 221.8);

Tailwind

colors: {
  custom: {
    50: '#638998',
    500: '#155b6f',
    950: '#000000',
  },
}

SCSS

$custom: #155b6f;
$custom-light: #638998;
$custom-dark: #000000;

JSON

{
  "hex": "#155b6f",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 111
  },
  "hsl": {
    "h": 193.333,
    "s": 68.182,
    "l": 25.882
  },
  "oklch": {
    "l": 0.43906,
    "c": 0.07316,
    "h": 221.8
  },
  "luminance": 0.08789
}

Semantic roles & 50–950 ramp

primary

#155B6F

secondary

#A5523A

accent

#633DEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #155B6F

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

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