#155B63#155B63

#155B63 is a dark, moderate teal. Relative luminance 0.085; OKLCH L 43.4% C 0.067 H 206.4°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#155B63
RGB	rgb(21, 91, 99)
HSL	hsl(186, 65%, 24%)
HSV	hsv(186, 79%, 39%)
CMYK	cmyk(78.8%, 8.1%, 0%, 61.2%)
CIE-LAB	lab(35.09, -17.83, -10.70)
CIE-LCH	lch(35.09, 20.80, 210.96°)
OKLab	oklab(43.35% -0.0599 -0.0297)
OKLCH	oklch(43.35% 0.067 206.4)
XYZ	xyz(6.3015, 8.5417, 13.1186)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B63 #631D15

analogous

#156344 #155B63 #153463

triadic

#155B63 #63155B #5B6315

tetradic

#155B63 #441563 #631D15 #346315

square

#155B63 #441563 #631D15 #346315

split-complementary

#155B63 #631534 #634415

monochromatic

#051719 #0A2D31 #155B63 #208995 #2AB8C8

Accessibility & contrast

On white

7.75

#155B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#155B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B63

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B63	#FFFFFF	#000000	##FFFFFF
##155B63	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535764

Deuteranopia (green-blind)

#484F63

Tritanopia (blue-blind)

#005F5D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155b63;
/* rgb */ color: rgb(21, 91, 99);
/* oklch */ color: oklch(43.4% 0.067 206.4);

Tailwind

colors: {
  custom: {
    50: '#61898f',
    500: '#155b63',
    950: '#000000',
  },
}

SCSS

$custom: #155b63;
$custom-light: #61898f;
$custom-dark: #000000;

JSON

{
  "hex": "#155b63",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 99
  },
  "hsl": {
    "h": 186.154,
    "s": 65,
    "l": 23.529
  },
  "oklch": {
    "l": 0.43352,
    "c": 0.06691,
    "h": 206.4
  },
  "luminance": 0.08542
}

Semantic roles & 50–950 ramp

primary

#155B63

secondary

#9A443A

accent

#5140E8

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #155B63

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

Preview Lab → · Contrast checker → · Palette generator →