#255D9F#255D9F

#255D9F is a mid, vivid cyan. Relative luminance 0.107; OKLCH L 47.6% C 0.122 H 254.6°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#255D9F
RGB	rgb(37, 93, 159)
HSL	hsl(212, 62%, 38%)
HSV	hsv(212, 77%, 62%)
CMYK	cmyk(76.7%, 41.5%, 0%, 37.6%)
CIE-LAB	lab(39.11, 5.62, -41.05)
CIE-LCH	lch(39.11, 41.43, 277.79°)
OKLab	oklab(47.63% -0.0322 -0.1173)
OKLCH	oklch(47.63% 0.122 254.6)
XYZ	xyz(10.9330, 10.7240, 34.2879)
Luminance	0.1072 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255D9F #9F6725

analogous

#259A9F #255D9F #2A259F

triadic

#255D9F #9F255D #5D9F25

tetradic

#255D9F #9F259A #9F6725 #259F2A

square

#255D9F #9F259A #9F6725 #259F2A

split-complementary

#255D9F #9F2A25 #9A9F25

monochromatic

#0E233C #19406D #255D9F #327ACF #649ADB

Accessibility & contrast

On white

6.68

#255D9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#255D9F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255D9F

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255D9F	#FFFFFF	#000000	##FFFFFF
##255D9F	1.00	6.68	3.15	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D62A2

Deuteranopia (green-blind)

#29579E

Tritanopia (blue-blind)

#006D76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255d9f;
/* rgb */ color: rgb(37, 93, 159);
/* oklch */ color: oklch(47.6% 0.122 254.6);

Tailwind

colors: {
  custom: {
    50: '#718abc',
    500: '#255d9f',
    950: '#000000',
  },
}

SCSS

$custom: #255d9f;
$custom-light: #718abc;
$custom-dark: #000000;

JSON

{
  "hex": "#255d9f",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 159
  },
  "hsl": {
    "h": 212.459,
    "s": 62.245,
    "l": 38.431
  },
  "oklch": {
    "l": 0.47634,
    "c": 0.12164,
    "h": 254.6
  },
  "luminance": 0.10725
}

Semantic roles & 50–950 ramp

primary

#255D9F

secondary

#C0945F

accent

#9B42E5

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255D9F

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

Preview Lab → · Contrast checker → · Palette generator →