#255B51#255B51

#255B51 is a dark, muted teal. Relative luminance 0.085; OKLCH L 43.2% C 0.060 H 179.3°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#255B51
RGB	rgb(37, 91, 81)
HSL	hsl(169, 42%, 25%)
HSV	hsv(169, 59%, 36%)
CMYK	cmyk(59.3%, 0%, 11%, 64.3%)
CIE-LAB	lab(34.94, -20.61, 0.38)
CIE-LCH	lch(34.94, 20.62, 178.94°)
OKLab	oklab(43.16% -0.0597 0.0007)
OKLCH	oklch(43.16% 0.06 179.3)
XYZ	xyz(5.9886, 8.4690, 9.1021)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B51 #5B252F

analogous

#255B36 #255B51 #254A5B

triadic

#255B51 #51255B #5B5125

tetradic

#255B51 #36255B #5B252F #4A5B25

square

#255B51 #36255B #5B252F #4A5B25

split-complementary

#255B51 #5B254A #5B3625

monochromatic

#091613 #132F2A #255B51 #378778 #48B29E

Accessibility & contrast

On white

7.80

#255B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#255B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B51

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B51	#FFFFFF	#000000	##FFFFFF
##255B51	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575651

Deuteranopia (green-blind)

#4F5052

Tritanopia (blue-blind)

#025C58

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #255b51;
/* rgb */ color: rgb(37, 91, 81);
/* oklch */ color: oklch(43.2% 0.060 179.3);

Tailwind

colors: {
  custom: {
    50: '#658981',
    500: '#255b51',
    950: '#000000',
  },
}

SCSS

$custom: #255b51;
$custom-light: #658981;
$custom-dark: #000000;

JSON

{
  "hex": "#255b51",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 81
  },
  "hsl": {
    "h": 168.889,
    "s": 42.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.43164,
    "c": 0.05975,
    "h": 179.3
  },
  "luminance": 0.0847
}

Semantic roles & 50–950 ramp

primary

#255B51

secondary

#8E4D59

accent

#566DD2

background

#F6F8F7

surface

#EBF0EE

border

#C6CBC9

text

#060B0A

muted

#7A7C7C

Preview Lab

Preview with #255B51

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

Preview Lab → · Contrast checker → · Palette generator →