#155D6D#155D6D

#155D6D is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.3% C 0.072 H 216.6°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#155D6D
RGB	rgb(21, 93, 109)
HSL	hsl(191, 68%, 25%)
HSV	hsv(191, 81%, 43%)
CMYK	cmyk(80.7%, 14.7%, 0%, 57.3%)
CIE-LAB	lab(36.16, -15.41, -15.28)
CIE-LCH	lch(36.16, 21.71, 224.75°)
OKLab	oklab(44.35% -0.0575 -0.0427)
OKLCH	oklch(44.35% 0.072 216.6)
XYZ	xyz(6.9828, 9.0914, 15.8518)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D6D #6D2515

analogous

#156D51 #155D6D #15316D

triadic

#155D6D #6D155D #5D6D15

tetradic

#155D6D #51156D #6D2515 #316D15

square

#155D6D #51156D #6D2515 #316D15

split-complementary

#155D6D #6D1531 #6D5115

monochromatic

#05161A #0B313A #155D6D #1F89A0 #29B5D4

Accessibility & contrast

On white

7.45

#155D6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#155D6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D6D

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D6D	#FFFFFF	#000000	##FFFFFF
##155D6D	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#525A6E

Deuteranopia (green-blind)

#46516D

Tritanopia (blue-blind)

#006362

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155d6d;
/* rgb */ color: rgb(21, 93, 109);
/* oklch */ color: oklch(44.3% 0.072 216.6);

Tailwind

colors: {
  custom: {
    50: '#638b96',
    500: '#155d6d',
    950: '#000000',
  },
}

SCSS

$custom: #155d6d;
$custom-light: #638b96;
$custom-dark: #000000;

JSON

{
  "hex": "#155d6d",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 109
  },
  "hsl": {
    "h": 190.909,
    "s": 67.692,
    "l": 25.49
  },
  "oklch": {
    "l": 0.44349,
    "c": 0.07165,
    "h": 216.6
  },
  "luminance": 0.09092
}

Semantic roles & 50–950 ramp

primary

#155D6D

secondary

#A34D3A

accent

#5D3DEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0D

muted

#7A7D7E

Preview Lab

Preview with #155D6D

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

Preview Lab → · Contrast checker → · Palette generator →