#255FA4#255FA4

#255FA4 is a mid, vivid cyan. Relative luminance 0.113; OKLCH L 48.4% C 0.126 H 254.9°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#255FA4
RGB	rgb(37, 95, 164)
HSL	hsl(213, 63%, 39%)
HSV	hsv(213, 77%, 64%)
CMYK	cmyk(77.4%, 42.1%, 0%, 35.7%)
CIE-LAB	lab(40.01, 6.26, -42.59)
CIE-LCH	lch(40.01, 43.05, 278.36°)
OKLab	oklab(48.43% -0.0329 -0.1218)
OKLCH	oklch(48.43% 0.126 254.9)
XYZ	xyz(11.5535, 11.2567, 36.6786)
Luminance	0.1126 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255FA4 #A46A25

analogous

#259FA4 #255FA4 #2A25A4

triadic

#255FA4 #A4255F #5FA425

tetradic

#255FA4 #A4259F #A46A25 #25A42A

square

#255FA4 #A4259F #A46A25 #25A42A

split-complementary

#255FA4 #A42A25 #9FA425

monochromatic

#0E2540 #1A4272 #255FA4 #357CD1 #679DDD

Accessibility & contrast

On white

6.46

#255FA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#255FA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255FA4

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255FA4	#FFFFFF	#000000	##FFFFFF
##255FA4	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D65A7

Deuteranopia (green-blind)

#2759A3

Tritanopia (blue-blind)

#006F79

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #255fa4;
/* rgb */ color: rgb(37, 95, 164);
/* oklch */ color: oklch(48.4% 0.126 254.9);

Tailwind

colors: {
  custom: {
    50: '#728bbf',
    500: '#255fa4',
    950: '#000000',
  },
}

SCSS

$custom: #255fa4;
$custom-light: #728bbf;
$custom-dark: #000000;

JSON

{
  "hex": "#255fa4",
  "rgb": {
    "r": 37,
    "g": 95,
    "b": 164
  },
  "hsl": {
    "h": 212.598,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.48429,
    "c": 0.12616,
    "h": 254.9
  },
  "luminance": 0.11258
}

Semantic roles & 50–950 ramp

primary

#255FA4

secondary

#C29762

accent

#9B42E6

background

#F7F8FB

surface

#EDF0F7

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #255FA4

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

Preview Lab → · Contrast checker → · Palette generator →