#255DA5#255DA5

#255DA5 is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 48.0% C 0.130 H 256.2°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#255DA5
RGB	rgb(37, 93, 165)
HSL	hsl(214, 63%, 40%)
HSV	hsv(214, 78%, 65%)
CMYK	cmyk(77.6%, 43.6%, 0%, 35.3%)
CIE-LAB	lab(39.47, 7.94, -44.04)
CIE-LCH	lch(39.47, 44.75, 280.22°)
OKLab	oklab(48.03% -0.0309 -0.1261)
OKLCH	oklch(48.03% 0.13 256.2)
XYZ	xyz(11.4663, 10.9373, 37.0968)
Luminance	0.1094 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255DA5 #A56D25

analogous

#259DA5 #255DA5 #2D25A5

triadic

#255DA5 #A5255D #5DA525

tetradic

#255DA5 #A5259D #A56D25 #25A52D

square

#255DA5 #A5259D #A56D25 #25A52D

split-complementary

#255DA5 #A52D25 #9DA525

monochromatic

#0F2541 #1A4173 #255DA5 #357AD2 #679BDD

Accessibility & contrast

On white

6.59

#255DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#255DA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255DA5

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255DA5	#FFFFFF	#000000	##FFFFFF
##255DA5	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3963A8

Deuteranopia (green-blind)

#2158A4

Tritanopia (blue-blind)

#006E79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255da5;
/* rgb */ color: rgb(37, 93, 165);
/* oklch */ color: oklch(48.0% 0.130 256.2);

Tailwind

colors: {
  custom: {
    50: '#738ac0',
    500: '#255da5',
    950: '#000000',
  },
}

SCSS

$custom: #255da5;
$custom-light: #738ac0;
$custom-dark: #000000;

JSON

{
  "hex": "#255da5",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 165
  },
  "hsl": {
    "h": 213.75,
    "s": 63.366,
    "l": 39.608
  },
  "oklch": {
    "l": 0.48033,
    "c": 0.12982,
    "h": 256.2
  },
  "luminance": 0.10939
}

Semantic roles & 50–950 ramp

primary

#255DA5

secondary

#C39963

accent

#9E41E6

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255DA5

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

Preview Lab → · Contrast checker → · Palette generator →