#255D91#255D91

#255D91 is a mid, moderate cyan. Relative luminance 0.103; OKLCH L 46.8% C 0.103 H 249.6°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#255D91
RGB	rgb(37, 93, 145)
HSL	hsl(209, 59%, 36%)
HSV	hsv(209, 74%, 57%)
CMYK	cmyk(74.5%, 35.9%, 0%, 43.1%)
CIE-LAB	lab(38.31, 0.23, -33.91)
CIE-LCH	lch(38.31, 33.91, 270.40°)
OKLab	oklab(46.75% -0.0359 -0.0964)
OKLCH	oklch(46.75% 0.103 249.6)
XYZ	xyz(9.7862, 10.2653, 28.2482)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255D91 #915925

analogous

#25918F #255D91 #252791

triadic

#255D91 #91255D #5D9125

tetradic

#255D91 #8F2591 #915925 #279125

square

#255D91 #8F2591 #915925 #279125

split-complementary

#255D91 #912527 #918F25

monochromatic

#0C1E2F #193E60 #255D91 #317CC2 #5B9AD5

Accessibility & contrast

On white

6.88

#255D91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#255D91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255D91

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255D91	#FFFFFF	#000000	##FFFFFF
##255D91	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456093

Deuteranopia (green-blind)

#365690

Tritanopia (blue-blind)

#006970

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #255d91;
/* rgb */ color: rgb(37, 93, 145);
/* oklch */ color: oklch(46.8% 0.103 249.6);

Tailwind

colors: {
  custom: {
    50: '#6e8ab1',
    500: '#255d91',
    950: '#000000',
  },
}

SCSS

$custom: #255d91;
$custom-light: #6e8ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#255d91",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 145
  },
  "hsl": {
    "h": 208.889,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.46751,
    "c": 0.10284,
    "h": 249.6
  },
  "luminance": 0.10266
}

Semantic roles & 50–950 ramp

primary

#255D91

secondary

#BA8758

accent

#9145E3

background

#F7F8FA

surface

#EDF0F5

border

#C8CBCF

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #255D91

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

Preview Lab → · Contrast checker → · Palette generator →