#155F40#155F40

#155F40 is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.3% C 0.088 H 160.5°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#155F40
RGB	rgb(21, 95, 64)
HSL	hsl(155, 64%, 23%)
HSV	hsv(155, 78%, 37%)
CMYK	cmyk(77.9%, 0%, 32.6%, 62.7%)
CIE-LAB	lab(35.43, -30.33, 11.51)
CIE-LCH	lch(35.43, 32.44, 159.21°)
OKLab	oklab(43.28% -0.0826 0.0292)
OKLCH	oklch(43.28% 0.088 160.5)
XYZ	xyz(5.3263, 8.7134, 6.2506)
Luminance	0.0871 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F40 #5F1534

analogous

#155F1B #155F40 #15595F

triadic

#155F40 #40155F #5F4015

tetradic

#155F40 #1B155F #5F1534 #595F15

square

#155F40 #1B155F #5F1534 #595F15

split-complementary

#155F40 #5F1559 #5F1B15

monochromatic

#061911 #0A2D1E #155F40 #209162 #2BC384

Accessibility & contrast

On white

7.66

#155F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#155F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F40

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F40	#FFFFFF	#000000	##FFFFFF
##155F40	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E573E

Deuteranopia (green-blind)

#545142

Tritanopia (blue-blind)

#005F57

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155f40;
/* rgb */ color: rgb(21, 95, 64);
/* oklch */ color: oklch(43.3% 0.088 160.5);

Tailwind

colors: {
  custom: {
    50: '#5f8d75',
    500: '#155f40',
    950: '#000000',
  },
}

SCSS

$custom: #155f40;
$custom-light: #5f8d75;
$custom-dark: #000000;

JSON

{
  "hex": "#155f40",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 64
  },
  "hsl": {
    "h": 154.865,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.43281,
    "c": 0.08764,
    "h": 160.5
  },
  "luminance": 0.08714
}

Semantic roles & 50–950 ramp

primary

#155F40

secondary

#963A60

accent

#4186E7

background

#F5F8F7

surface

#EAF0ED

border

#C6CBC8

text

#050C08

muted

#797D7B

Preview Lab

Preview with #155F40

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

Preview Lab → · Contrast checker → · Palette generator →