#4263BC#4263BC

#4263BC is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.2% C 0.145 H 266.2°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#4263BC
RGB	rgb(66, 99, 188)
HSL	hsl(224, 48%, 50%)
HSV	hsv(224, 65%, 74%)
CMYK	cmyk(64.9%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(43.82, 16.99, -50.53)
CIE-LCH	lch(43.82, 53.31, 288.59°)
OKLab	oklab(52.16% -0.0096 -0.1446)
OKLCH	oklch(52.16% 0.145 266.2)
XYZ	xyz(15.7826, 13.7113, 49.3820)
Luminance	0.1371 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4263BC #BC9B42

analogous

#42A0BC #4263BC #5E42BC

triadic

#4263BC #BC4263 #63BC42

tetradic

#4263BC #BC42A0 #BC9B42 #42BC5E

square

#4263BC #BC42A0 #BC9B42 #42BC5E

split-complementary

#4263BC #BC5E42 #A0BC42

monochromatic

#223361 #324B8F #4263BC #6F88CC #9CADDC

Accessibility & contrast

On white

5.61

#4263BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#4263BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4263BC

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4263BC	#FFFFFF	#000000	##FFFFFF
##4263BC	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366DBF

Deuteranopia (green-blind)

#1E62BA

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4263bc;
/* rgb */ color: rgb(66, 99, 188);
/* oklch */ color: oklch(52.2% 0.145 266.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4263bc",
  "rgb": {
    "r": 66,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 223.77,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.52165,
    "c": 0.1449,
    "h": 266.2
  },
  "luminance": 0.13713
}

Semantic roles & 50–950 ramp

primary

#4263BC

secondary

#C9BA91

accent

#B350D8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4263BC

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

Preview Lab → · Contrast checker → · Palette generator →