#155C6B#155C6B

#155C6B is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.0% C 0.070 H 215.5°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#155C6B
RGB	rgb(21, 92, 107)
HSL	hsl(190, 67%, 25%)
HSV	hsv(190, 80%, 42%)
CMYK	cmyk(80.4%, 14%, 0%, 58%)
CIE-LAB	lab(35.74, -15.57, -14.68)
CIE-LCH	lch(35.74, 21.40, 223.33°)
OKLab	oklab(43.99% -0.0573 -0.041)
OKLCH	oklch(43.99% 0.07 215.5)
XYZ	xyz(6.7891, 8.8744, 15.2622)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155C6B #6B2415

analogous

#156B4F #155C6B #15316B

triadic

#155C6B #6B155C #5C6B15

tetradic

#155C6B #4F156B #6B2415 #316B15

square

#155C6B #4F156B #6B2415 #316B15

split-complementary

#155C6B #6B1531 #6B4F15

monochromatic

#05161A #0B3038 #155C6B #1F889E #29B4D1

Accessibility & contrast

On white

7.57

#155C6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#155C6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155C6B

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155C6B	#FFFFFF	#000000	##FFFFFF
##155C6B	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52596C

Deuteranopia (green-blind)

#46506B

Tritanopia (blue-blind)

#006161

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155c6b;
/* rgb */ color: rgb(21, 92, 107);
/* oklch */ color: oklch(44.0% 0.070 215.5);

Tailwind

colors: {
  custom: {
    50: '#628a95',
    500: '#155c6b',
    950: '#000000',
  },
}

SCSS

$custom: #155c6b;
$custom-light: #628a95;
$custom-dark: #000000;

JSON

{
  "hex": "#155c6b",
  "rgb": {
    "r": 21,
    "g": 92,
    "b": 107
  },
  "hsl": {
    "h": 190.465,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.43985,
    "c": 0.07049,
    "h": 215.5
  },
  "luminance": 0.08875
}

Semantic roles & 50–950 ramp

primary

#155C6B

secondary

#A24C3A

accent

#5C3EEA

background

#F6F8F9

surface

#EBF0F1

border

#C6CBCB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #155C6B

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

Preview Lab → · Contrast checker → · Palette generator →