#255D9E#255D9E

#255D9E is a mid, vivid cyan. Relative luminance 0.107; OKLCH L 47.6% C 0.120 H 254.3°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#255D9E
RGB	rgb(37, 93, 158)
HSL	hsl(212, 62%, 38%)
HSV	hsv(212, 77%, 62%)
CMYK	cmyk(76.6%, 41.1%, 0%, 38%)
CIE-LAB	lab(39.05, 5.23, -40.55)
CIE-LCH	lch(39.05, 40.88, 277.35°)
OKLab	oklab(47.57% -0.0325 -0.1158)
OKLCH	oklch(47.57% 0.12 254.3)
XYZ	xyz(10.8466, 10.6894, 33.8327)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255D9E #9E6625

analogous

#25999E #255D9E #29259E

triadic

#255D9E #9E255D #5D9E25

tetradic

#255D9E #9E2599 #9E6625 #259E29

square

#255D9E #9E2599 #9E6625 #259E29

split-complementary

#255D9E #9E2925 #999E25

monochromatic

#0E233B #19406C #255D9E #317ACF #639ADA

Accessibility & contrast

On white

6.69

#255D9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#255D9E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255D9E

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255D9E	#FFFFFF	#000000	##FFFFFF
##255D9E	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E62A1

Deuteranopia (green-blind)

#2A579D

Tritanopia (blue-blind)

#006C76

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #255d9e;
/* rgb */ color: rgb(37, 93, 158);
/* oklch */ color: oklch(47.6% 0.120 254.3);

Tailwind

colors: {
  custom: {
    50: '#718abb',
    500: '#255d9e',
    950: '#000000',
  },
}

SCSS

$custom: #255d9e;
$custom-light: #718abb;
$custom-dark: #000000;

JSON

{
  "hex": "#255d9e",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 158
  },
  "hsl": {
    "h": 212.231,
    "s": 62.051,
    "l": 38.235
  },
  "oklch": {
    "l": 0.47568,
    "c": 0.12029,
    "h": 254.3
  },
  "luminance": 0.10691
}

Semantic roles & 50–950 ramp

primary

#255D9E

secondary

#C0935F

accent

#9A43E5

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255D9E

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

Preview Lab → · Contrast checker → · Palette generator →