#255DA3#255DA3

#255DA3 is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 47.9% C 0.127 H 255.7°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#255DA3
RGB	rgb(37, 93, 163)
HSL	hsl(213, 63%, 39%)
HSV	hsv(213, 77%, 64%)
CMYK	cmyk(77.3%, 42.9%, 0%, 36.1%)
CIE-LAB	lab(39.35, 7.17, -43.05)
CIE-LCH	lch(39.35, 43.64, 279.45°)
OKLab	oklab(47.9% -0.0313 -0.1232)
OKLCH	oklch(47.9% 0.127 255.7)
XYZ	xyz(11.2857, 10.8651, 36.1456)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255DA3 #A36B25

analogous

#259CA3 #255DA3 #2C25A3

triadic

#255DA3 #A3255D #5DA325

tetradic

#255DA3 #A3259C #A36B25 #25A32C

square

#255DA3 #A3259C #A36B25 #25A32C

split-complementary

#255DA3 #A32C25 #9CA325

monochromatic

#0E243F #1A4171 #255DA3 #347AD1 #669BDC

Accessibility & contrast

On white

6.62

#255DA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#255DA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255DA3

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255DA3	#FFFFFF	#000000	##FFFFFF
##255DA3	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A63A6

Deuteranopia (green-blind)

#2457A2

Tritanopia (blue-blind)

#006E78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255da3;
/* rgb */ color: rgb(37, 93, 163);
/* oklch */ color: oklch(47.9% 0.127 255.7);

Tailwind

colors: {
  custom: {
    50: '#728abf',
    500: '#255da3',
    950: '#000000',
  },
}

SCSS

$custom: #255da3;
$custom-light: #728abf;
$custom-dark: #000000;

JSON

{
  "hex": "#255da3",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 163
  },
  "hsl": {
    "h": 213.333,
    "s": 63,
    "l": 39.216
  },
  "oklch": {
    "l": 0.47899,
    "c": 0.12709,
    "h": 255.7
  },
  "luminance": 0.10866
}

Semantic roles & 50–950 ramp

primary

#255DA3

secondary

#C29762

accent

#9D42E6

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255DA3

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

Preview Lab → · Contrast checker → · Palette generator →