#4263BA#4263BA

#4263BA is a mid, vivid blue. Relative luminance 0.136; OKLCH L 52.0% C 0.142 H 266.0°. Best body text is #FFFFFF at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#4263BA
RGB	rgb(66, 99, 186)
HSL	hsl(224, 48%, 49%)
HSV	hsv(224, 65%, 73%)
CMYK	cmyk(64.5%, 46.8%, 0%, 27.1%)
CIE-LAB	lab(43.69, 16.28, -49.57)
CIE-LCH	lch(43.69, 52.17, 288.19°)
OKLab	oklab(52.03% -0.0099 -0.1417)
OKLCH	oklch(52.03% 0.142 266)
XYZ	xyz(15.5685, 13.6257, 48.2544)
Luminance	0.1363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263BA #BA9942

analogous

#429FBA #4263BA #5D42BA

triadic

#4263BA #BA4263 #63BA42

tetradic

#4263BA #BA429F #BA9942 #42BA5D

square

#4263BA #BA429F #BA9942 #42BA5D

split-complementary

#4263BA #BA5D42 #9FBA42

monochromatic

#223360 #324B8D #4263BA #6E88CB #9BADDB

Accessibility & contrast

On white

5.64

#4263BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#4263BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263BA

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263BA	#FFFFFF	#000000	##FFFFFF
##4263BA	1.00	5.64	3.73	5.64
#FFFFFF	5.64	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386DBD

Deuteranopia (green-blind)

#2162B8

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4263ba;
/* rgb */ color: rgb(66, 99, 186);
/* oklch */ color: oklch(52.0% 0.142 266.0);

Tailwind

colors: {
  custom: {
    50: '#828ecf',
    500: '#4263ba',
    950: '#000000',
  },
}

SCSS

$custom: #4263ba;
$custom-light: #828ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#4263ba",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 186
  },
  "hsl": {
    "h": 223.5,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5203,
    "c": 0.1421,
    "h": 266
  },
  "luminance": 0.13627
}

Semantic roles & 50–950 ramp

primary

#4263BA

secondary

#C8B890

accent

#B251D7

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4263BA

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

Preview Lab → · Contrast checker → · Palette generator →