#155D6E#155D6E

#155D6E is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.4% C 0.072 H 217.8°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#155D6E
RGB	rgb(21, 93, 110)
HSL	hsl(191, 68%, 26%)
HSV	hsv(191, 81%, 43%)
CMYK	cmyk(80.9%, 15.5%, 0%, 56.9%)
CIE-LAB	lab(36.20, -15.05, -15.84)
CIE-LCH	lch(36.20, 21.85, 226.45°)
OKLab	oklab(44.4% -0.0571 -0.0443)
OKLCH	oklch(44.4% 0.072 217.8)
XYZ	xyz(7.0369, 9.1131, 16.1370)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D6E #6E2615

analogous

#156E52 #155D6E #15306E

triadic

#155D6E #6E155D #5D6E15

tetradic

#155D6E #52156E #6E2615 #306E15

square

#155D6E #52156E #6E2615 #306E15

split-complementary

#155D6E #6E1530 #6E5215

monochromatic

#05161A #0B323B #155D6E #1F88A1 #29B4D5

Accessibility & contrast

On white

7.44

#155D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#155D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D6E

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D6E	#FFFFFF	#000000	##FFFFFF
##155D6E	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#525A6F

Deuteranopia (green-blind)

#46516E

Tritanopia (blue-blind)

#006362

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155d6e;
/* rgb */ color: rgb(21, 93, 110);
/* oklch */ color: oklch(44.4% 0.072 217.8);

Tailwind

colors: {
  custom: {
    50: '#638b97',
    500: '#155d6e',
    950: '#000000',
  },
}

SCSS

$custom: #155d6e;
$custom-light: #638b97;
$custom-dark: #000000;

JSON

{
  "hex": "#155d6e",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 110
  },
  "hsl": {
    "h": 191.461,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.44396,
    "c": 0.07225,
    "h": 217.8
  },
  "luminance": 0.09114
}

Semantic roles & 50–950 ramp

primary

#155D6E

secondary

#A44F3A

accent

#5E3DEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0D

muted

#7A7D7E

Preview Lab

Preview with #155D6E

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

Preview Lab → · Contrast checker → · Palette generator →