#255757#255757

#255757 is a dark, muted teal. Relative luminance 0.079; OKLCH L 42.3% C 0.054 H 195.3°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#255757
RGB	rgb(37, 87, 87)
HSL	hsl(180, 40%, 24%)
HSV	hsv(180, 57%, 34%)
CMYK	cmyk(57.5%, 0%, 0%, 65.9%)
CIE-LAB	lab(33.77, -16.65, -5.11)
CIE-LCH	lch(33.77, 17.41, 197.07°)
OKLab	oklab(42.28% -0.0516 -0.0141)
OKLCH	oklch(42.28% 0.054 195.3)
XYZ	xyz(5.8907, 7.8973, 10.2289)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255757 #572525

analogous

#25573E #255757 #253E57

triadic

#255757 #572557 #575725

tetradic

#255757 #3E2557 #572525 #3E5725

square

#255757 #3E2557 #572525 #3E5725

split-complementary

#255757 #57253E #573E25

monochromatic

#091515 #132C2C #255757 #378282 #4AADAD

Accessibility & contrast

On white

8.14

#255757 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#255757 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255757

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255757	#FFFFFF	#000000	##FFFFFF
##255757	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#525357

Deuteranopia (green-blind)

#494D57

Tritanopia (blue-blind)

#005A57

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #255757;
/* rgb */ color: rgb(37, 87, 87);
/* oklch */ color: oklch(42.3% 0.054 195.3);

Tailwind

colors: {
  custom: {
    50: '#658686',
    500: '#255757',
    950: '#000000',
  },
}

SCSS

$custom: #255757;
$custom-light: #658686;
$custom-dark: #000000;

JSON

{
  "hex": "#255757",
  "rgb": {
    "r": 37,
    "g": 87,
    "b": 87
  },
  "hsl": {
    "h": 180,
    "s": 40.323,
    "l": 24.314
  },
  "oklch": {
    "l": 0.42279,
    "c": 0.05355,
    "h": 195.3
  },
  "luminance": 0.07898
}

Semantic roles & 50–950 ramp

primary

#255757

secondary

#8A4D4D

accent

#5858D0

background

#F6F8F8

surface

#EBEFEF

border

#C6CACA

text

#060B0B

muted

#7A7C7C

Preview Lab

Preview with #255757

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

Preview Lab → · Contrast checker → · Palette generator →