#155E40#155E40

#155E40 is a dark, moderate teal. Relative luminance 0.085; OKLCH L 43.0% C 0.086 H 161.0°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#155E40
RGB	rgb(21, 94, 64)
HSL	hsl(155, 63%, 23%)
HSV	hsv(155, 78%, 37%)
CMYK	cmyk(77.7%, 0%, 31.9%, 63.1%)
CIE-LAB	lab(35.07, -29.88, 11.03)
CIE-LCH	lch(35.07, 31.85, 159.75°)
OKLab	oklab(42.99% -0.0815 0.028)
OKLCH	oklch(42.99% 0.086 161)
XYZ	xyz(5.2368, 8.5344, 6.2208)
Luminance	0.0853 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155E40 #5E1533

analogous

#155E1B #155E40 #15585E

triadic

#155E40 #40155E #5E4015

tetradic

#155E40 #1B155E #5E1533 #585E15

square

#155E40 #1B155E #5E1533 #585E15

split-complementary

#155E40 #5E1558 #5E1B15

monochromatic

#061911 #0A2C1E #155E40 #209062 #2BC284

Accessibility & contrast

On white

7.76

#155E40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#155E40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E40

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155E40	#FFFFFF	#000000	##FFFFFF
##155E40	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563E

Deuteranopia (green-blind)

#535042

Tritanopia (blue-blind)

#005E56

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155e40;
/* rgb */ color: rgb(21, 94, 64);
/* oklch */ color: oklch(43.0% 0.086 161.0);

Tailwind

colors: {
  custom: {
    50: '#5f8c75',
    500: '#155e40',
    950: '#000000',
  },
}

SCSS

$custom: #155e40;
$custom-light: #5f8c75;
$custom-dark: #000000;

JSON

{
  "hex": "#155e40",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 64
  },
  "hsl": {
    "h": 155.342,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.4299,
    "c": 0.08618,
    "h": 161
  },
  "luminance": 0.08535
}

Semantic roles & 50–950 ramp

primary

#155E40

secondary

#95395F

accent

#4185E7

background

#F5F8F7

surface

#EAF0ED

border

#C6CBC8

text

#050C08

muted

#797D7B

Preview Lab

Preview with #155E40

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

Preview Lab → · Contrast checker → · Palette generator →