#255B91#255B91

#255B91 is a mid, moderate cyan. Relative luminance 0.099; OKLCH L 46.3% C 0.105 H 251.2°. Best body text is #FFFFFF at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#255B91
RGB	rgb(37, 91, 145)
HSL	hsl(210, 59%, 36%)
HSV	hsv(210, 74%, 57%)
CMYK	cmyk(74.5%, 37.2%, 0%, 43.1%)
CIE-LAB	lab(37.70, 1.51, -34.89)
CIE-LCH	lch(37.70, 34.92, 272.48°)
OKLab	oklab(46.27% -0.0339 -0.0993)
OKLCH	oklch(46.27% 0.105 251.2)
XYZ	xyz(9.6130, 9.9187, 28.1905)
Luminance	0.0992 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B91 #915B25

analogous

#259191 #255B91 #252591

triadic

#255B91 #91255B #5B9125

tetradic

#255B91 #912591 #915B25 #259125

square

#255B91 #912591 #915B25 #259125

split-complementary

#255B91 #912525 #919125

monochromatic

#0C1E2F #193C60 #255B91 #317AC2 #5B98D5

Accessibility & contrast

On white

7.04

#255B91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#255B91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B91

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B91	#FFFFFF	#000000	##FFFFFF
##255B91	1.00	7.04	2.98	7.04
#FFFFFF	7.04	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425E93

Deuteranopia (green-blind)

#325490

Tritanopia (blue-blind)

#00686F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #255b91;
/* rgb */ color: rgb(37, 91, 145);
/* oklch */ color: oklch(46.3% 0.105 251.2);

Tailwind

colors: {
  custom: {
    50: '#6e89b1',
    500: '#255b91',
    950: '#000000',
  },
}

SCSS

$custom: #255b91;
$custom-light: #6e89b1;
$custom-dark: #000000;

JSON

{
  "hex": "#255b91",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 145
  },
  "hsl": {
    "h": 210,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.46267,
    "c": 0.10489,
    "h": 251.2
  },
  "luminance": 0.0992
}

Semantic roles & 50–950 ramp

primary

#255B91

secondary

#BA8958

accent

#9445E3

background

#F7F8FA

surface

#EDEFF5

border

#C8CACF

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #255B91

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

Preview Lab → · Contrast checker → · Palette generator →