#4263BD#4263BD

#4263BD is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.2% C 0.146 H 266.3°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#4263BD
RGB	rgb(66, 99, 189)
HSL	hsl(224, 48%, 50%)
HSV	hsv(224, 65%, 74%)
CMYK	cmyk(65.1%, 47.6%, 0%, 25.9%)
CIE-LAB	lab(43.88, 17.35, -51.01)
CIE-LCH	lch(43.88, 53.88, 288.78°)
OKLab	oklab(52.23% -0.0095 -0.146)
OKLCH	oklch(52.23% 0.146 266.3)
XYZ	xyz(15.8907, 13.7546, 49.9517)
Luminance	0.1376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263BD #BD9C42

analogous

#42A1BD #4263BD #5E42BD

triadic

#4263BD #BD4263 #63BD42

tetradic

#4263BD #BD42A1 #BD9C42 #42BD5E

square

#4263BD #BD42A1 #BD9C42 #42BD5E

split-complementary

#4263BD #BD5E42 #A1BD42

monochromatic

#223362 #324B90 #4263BD #6F88CD #9DAEDD

Accessibility & contrast

On white

5.60

#4263BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#4263BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263BD

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263BD	#FFFFFF	#000000	##FFFFFF
##4263BD	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356EC0

Deuteranopia (green-blind)

#1C62BB

Tritanopia (blue-blind)

#007887

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4263bd;
/* rgb */ color: rgb(66, 99, 189);
/* oklch */ color: oklch(52.2% 0.146 266.3);

Tailwind

colors: {
  custom: {
    50: '#838ed1',
    500: '#4263bd',
    950: '#000000',
  },
}

SCSS

$custom: #4263bd;
$custom-light: #838ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#4263bd",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 189
  },
  "hsl": {
    "h": 223.902,
    "s": 48.235,
    "l": 50
  },
  "oklch": {
    "l": 0.52234,
    "c": 0.14631,
    "h": 266.3
  },
  "luminance": 0.13756
}

Semantic roles & 50–950 ramp

primary

#4263BD

secondary

#C9BA92

accent

#B350D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4263BD

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

Preview Lab → · Contrast checker → · Palette generator →