#15583B#15583B

#15583B is a dark, moderate teal. Relative luminance 0.075; OKLCH L 41.1% C 0.082 H 160.2°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#15583B
RGB	rgb(21, 88, 59)
HSL	hsl(154, 61%, 21%)
HSV	hsv(154, 76%, 35%)
CMYK	cmyk(76.1%, 0%, 33%, 65.5%)
CIE-LAB	lab(32.82, -28.38, 10.99)
CIE-LCH	lch(32.82, 30.43, 158.83°)
OKLab	oklab(41.1% -0.0773 0.0279)
OKLCH	oklch(41.1% 0.082 160.2)
XYZ	xyz(4.5879, 7.4541, 5.3338)
Luminance	0.0746 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15583B #581532

analogous

#15581A #15583B #155458

triadic

#15583B #3B1558 #583B15

tetradic

#15583B #1A1558 #581532 #545815

square

#15583B #1A1558 #581532 #545815

split-complementary

#15583B #581554 #581A15

monochromatic

#061911 #09271A #15583B #21895C #2DBB7D

Accessibility & contrast

On white

8.43

#15583B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#15583B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15583B

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15583B	#FFFFFF	#000000	##FFFFFF
##15583B	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575139

Deuteranopia (green-blind)

#4E4B3D

Tritanopia (blue-blind)

#005850

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #15583b;
/* rgb */ color: rgb(21, 88, 59);
/* oklch */ color: oklch(41.1% 0.082 160.2);

Tailwind

colors: {
  custom: {
    50: '#5d8871',
    500: '#15583b',
    950: '#000000',
  },
}

SCSS

$custom: #15583b;
$custom-light: #5d8871;
$custom-dark: #000000;

JSON

{
  "hex": "#15583b",
  "rgb": {
    "r": 21,
    "g": 88,
    "b": 59
  },
  "hsl": {
    "h": 154.03,
    "s": 61.468,
    "l": 21.373
  },
  "oklch": {
    "l": 0.411,
    "c": 0.08219,
    "h": 160.2
  },
  "luminance": 0.07455
}

Semantic roles & 50–950 ramp

primary

#15583B

secondary

#90395F

accent

#4389E5

background

#F5F8F6

surface

#E9F0EC

border

#C5CBC7

text

#050B07

muted

#797C7A

Preview Lab

Preview with #15583B

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

Preview Lab → · Contrast checker → · Palette generator →