#155E4B#155E4B

#155E4B is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.3% C 0.076 H 171.1°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#155E4B
RGB	rgb(21, 94, 75)
HSL	hsl(164, 63%, 23%)
HSV	hsv(164, 78%, 37%)
CMYK	cmyk(77.7%, 0%, 20.2%, 63.1%)
CIE-LAB	lab(35.35, -26.97, 4.64)
CIE-LCH	lch(35.35, 27.37, 170.24°)
OKLab	oklab(43.3% -0.0756 0.0118)
OKLCH	oklch(43.3% 0.077 171.1)
XYZ	xyz(5.5813, 8.6722, 8.0350)
Luminance	0.0867 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155E4B #5E1528

analogous

#155E27 #155E4B #154C5E

triadic

#155E4B #4B155E #5E4B15

tetradic

#155E4B #27155E #5E1528 #4C5E15

square

#155E4B #27155E #5E1528 #4C5E15

split-complementary

#155E4B #5E154C #5E2715

monochromatic

#061914 #0A2C23 #155E4B #209073 #2BC29B

Accessibility & contrast

On white

7.68

#155E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#155E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E4B

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155E4B	#FFFFFF	#000000	##FFFFFF
##155E4B	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B574A

Deuteranopia (green-blind)

#51504C

Tritanopia (blue-blind)

#005F59

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155e4b;
/* rgb */ color: rgb(21, 94, 75);
/* oklch */ color: oklch(43.3% 0.076 171.1);

Tailwind

colors: {
  custom: {
    50: '#5f8c7d',
    500: '#155e4b',
    950: '#000000',
  },
}

SCSS

$custom: #155e4b;
$custom-light: #5f8c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#155e4b",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 75
  },
  "hsl": {
    "h": 164.384,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.43304,
    "c": 0.0765,
    "h": 171.1
  },
  "luminance": 0.08673
}

Semantic roles & 50–950 ramp

primary

#155E4B

secondary

#953951

accent

#416CE7

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C09

muted

#797D7B

Preview Lab

Preview with #155E4B

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

Preview Lab → · Contrast checker → · Palette generator →