#4263B0#4263B0

#4263B0 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.4% C 0.128 H 264.8°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#4263B0
RGB	rgb(66, 99, 176)
HSL	hsl(222, 45%, 47%)
HSV	hsv(222, 63%, 69%)
CMYK	cmyk(62.5%, 43.8%, 0%, 31%)
CIE-LAB	lab(43.09, 12.75, -44.69)
CIE-LCH	lch(43.09, 46.47, 285.92°)
OKLab	oklab(51.37% -0.0116 -0.1274)
OKLCH	oklch(51.37% 0.128 264.8)
XYZ	xyz(14.5424, 13.2152, 42.8503)
Luminance	0.1322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263B0 #B08F42

analogous

#429AB0 #4263B0 #5842B0

triadic

#4263B0 #B04263 #63B042

tetradic

#4263B0 #B0429A #B08F42 #42B058

square

#4263B0 #B0429A #B08F42 #42B058

split-complementary

#4263B0 #B05842 #9AB042

monochromatic

#213157 #314A83 #4263B0 #6985C7 #95A9D7

Accessibility & contrast

On white

5.76

#4263B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#4263B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263B0

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263B0	#FFFFFF	#000000	##FFFFFF
##4263B0	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406BB3

Deuteranopia (green-blind)

#2F61AE

Tritanopia (blue-blind)

#007481

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4263b0;
/* rgb */ color: rgb(66, 99, 176);
/* oklch */ color: oklch(51.4% 0.128 264.8);

Tailwind

colors: {
  custom: {
    50: '#818fc8',
    500: '#4263b0',
    950: '#000000',
  },
}

SCSS

$custom: #4263b0;
$custom-light: #818fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#4263b0",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 176
  },
  "hsl": {
    "h": 222,
    "s": 45.455,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5137,
    "c": 0.12795,
    "h": 264.8
  },
  "luminance": 0.13217
}

Semantic roles & 50–950 ramp

primary

#4263B0

secondary

#C3B28B

accent

#AE53D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4263B0

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

Preview Lab → · Contrast checker → · Palette generator →