#4263BF#4263BF

#4263BF is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.4% C 0.149 H 266.5°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#4263BF
RGB	rgb(66, 99, 191)
HSL	hsl(224, 49%, 50%)
HSV	hsv(224, 65%, 75%)
CMYK	cmyk(65.4%, 48.2%, 0%, 25.1%)
CIE-LAB	lab(44.01, 18.06, -51.97)
CIE-LCH	lch(44.01, 55.02, 289.16°)
OKLab	oklab(52.37% -0.0092 -0.1488)
OKLCH	oklch(52.37% 0.149 266.5)
XYZ	xyz(16.1093, 13.8420, 51.1029)
Luminance	0.1384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263BF #BF9E42

analogous

#42A1BF #4263BF #5F42BF

triadic

#4263BF #BF4263 #63BF42

tetradic

#4263BF #BF42A1 #BF9E42 #42BF5F

square

#4263BF #BF42A1 #BF9E42 #42BF5F

split-complementary

#4263BF #BF5F42 #A1BF42

monochromatic

#223465 #324B92 #4263BF #7089CE #9DAEDE

Accessibility & contrast

On white

5.57

#4263BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#4263BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263BF

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263BF	#FFFFFF	#000000	##FFFFFF
##4263BF	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#336EC2

Deuteranopia (green-blind)

#1763BD

Tritanopia (blue-blind)

#007888

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4263bf;
/* rgb */ color: rgb(66, 99, 191);
/* oklch */ color: oklch(52.4% 0.149 266.5);

Tailwind

colors: {
  custom: {
    50: '#838ed3',
    500: '#4263bf',
    950: '#000000',
  },
}

SCSS

$custom: #4263bf;
$custom-light: #838ed3;
$custom-dark: #000000;

JSON

{
  "hex": "#4263bf",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 191
  },
  "hsl": {
    "h": 224.16,
    "s": 49.407,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52371,
    "c": 0.14909,
    "h": 266.5
  },
  "luminance": 0.13844
}

Semantic roles & 50–950 ramp

primary

#4263BF

secondary

#CABC93

accent

#B44FD9

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #4263BF

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

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