#255B63#255B63

#255B63 is a dark, muted teal. Relative luminance 0.088; OKLCH L 43.9% C 0.058 H 208.4°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#255B63
RGB	rgb(37, 91, 99)
HSL	hsl(188, 46%, 27%)
HSV	hsv(188, 63%, 39%)
CMYK	cmyk(62.6%, 8.1%, 0%, 61.2%)
CIE-LAB	lab(35.55, -15.08, -9.96)
CIE-LCH	lch(35.55, 18.07, 213.43°)
OKLab	oklab(43.86% -0.0509 -0.0276)
OKLCH	oklch(43.86% 0.058 208.4)
XYZ	xyz(6.7552, 8.7757, 13.1398)
Luminance	0.0878 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B63 #632D25

analogous

#25634C #255B63 #253C63

triadic

#255B63 #63255B #5B6325

tetradic

#255B63 #4C2563 #632D25 #3C6325

square

#255B63 #4C2563 #632D25 #3C6325

split-complementary

#255B63 #63253C #634C25

monochromatic

#081416 #143236 #255B63 #368490 #48ACBB

Accessibility & contrast

On white

7.62

#255B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#255B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B63

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B63	#FFFFFF	#000000	##FFFFFF
##255B63	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535864

Deuteranopia (green-blind)

#4A5163

Tritanopia (blue-blind)

#005F5D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #255b63;
/* rgb */ color: rgb(37, 91, 99);
/* oklch */ color: oklch(43.9% 0.058 208.4);

Tailwind

colors: {
  custom: {
    50: '#67898f',
    500: '#255b63',
    950: '#000000',
  },
}

SCSS

$custom: #255b63;
$custom-light: #67898f;
$custom-dark: #000000;

JSON

{
  "hex": "#255b63",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 99
  },
  "hsl": {
    "h": 187.742,
    "s": 45.588,
    "l": 26.667
  },
  "oklch": {
    "l": 0.43856,
    "c": 0.0579,
    "h": 208.4
  },
  "luminance": 0.08776
}

Semantic roles & 50–950 ramp

primary

#255B63

secondary

#96574E

accent

#6353D5

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #255B63

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

Preview Lab → · Contrast checker → · Palette generator →