#155E4D#155E4D

#155E4D is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.4% C 0.075 H 173.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#155E4D
RGB	rgb(21, 94, 77)
HSL	hsl(166, 63%, 23%)
HSV	hsv(166, 78%, 37%)
CMYK	cmyk(77.7%, 0%, 18.1%, 63.1%)
CIE-LAB	lab(35.40, -26.41, 3.48)
CIE-LCH	lch(35.40, 26.63, 172.50°)
OKLab	oklab(43.37% -0.0745 0.0088)
OKLCH	oklch(43.37% 0.075 173.3)
XYZ	xyz(5.6508, 8.7000, 8.4012)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155E4D #5E1526

analogous

#155E28 #155E4D #154B5E

triadic

#155E4D #4D155E #5E4D15

tetradic

#155E4D #28155E #5E1526 #4B5E15

square

#155E4D #28155E #5E1526 #4B5E15

split-complementary

#155E4D #5E154B #5E2815

monochromatic

#061914 #0A2C24 #155E4D #209076 #2BC29F

Accessibility & contrast

On white

7.66

#155E4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#155E4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E4D

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155E4D	#FFFFFF	#000000	##FFFFFF
##155E4D	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)

#5B574C

Deuteranopia (green-blind)

#51504E

Tritanopia (blue-blind)

#005F59

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155e4d;
/* rgb */ color: rgb(21, 94, 77);
/* oklch */ color: oklch(43.4% 0.075 173.3);

Tailwind

colors: {
  custom: {
    50: '#5f8c7e',
    500: '#155e4d',
    950: '#000000',
  },
}

SCSS

$custom: #155e4d;
$custom-light: #5f8c7e;
$custom-dark: #000000;

JSON

{
  "hex": "#155e4d",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 77
  },
  "hsl": {
    "h": 166.027,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.43367,
    "c": 0.07503,
    "h": 173.3
  },
  "luminance": 0.08701
}

Semantic roles & 50–950 ramp

primary

#155E4D

secondary

#95394F

accent

#4168E7

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C0A

muted

#797D7C

Preview Lab

Preview with #155E4D

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

Preview Lab → · Contrast checker → · Palette generator →