#4253BC#4253BC

#4253BC is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.9% C 0.165 H 271.9°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#4253BC
RGB	rgb(66, 83, 188)
HSL	hsl(232, 48%, 50%)
HSV	hsv(232, 65%, 74%)
CMYK	cmyk(64.9%, 55.9%, 0%, 26.3%)
CIE-LAB	lab(39.54, 27.25, -57.43)
CIE-LCH	lch(39.54, 63.57, 295.38°)
OKLab	oklab(48.93% 0.0055 -0.1651)
OKLCH	oklch(48.93% 0.165 271.9)
XYZ	xyz(14.4141, 10.9743, 48.9259)
Luminance	0.1098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253BC #BCAB42

analogous

#4290BC #4253BC #6E42BC

triadic

#4253BC #BC4253 #53BC42

tetradic

#4253BC #BC4290 #BCAB42 #42BC6E

square

#4253BC #BC4290 #BCAB42 #42BC6E

split-complementary

#4253BC #BC6E42 #90BC42

monochromatic

#222B61 #323F8F #4253BC #6F7CCC #9CA5DC

Accessibility & contrast

On white

6.57

#4253BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#4253BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253BC

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253BC	#FFFFFF	#000000	##FFFFFF
##4253BC	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0058BA

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4253bc;
/* rgb */ color: rgb(66, 83, 188);
/* oklch */ color: oklch(48.9% 0.165 271.9);

Tailwind

colors: {
  custom: {
    50: '#8483d1',
    500: '#4253bc',
    950: '#000000',
  },
}

SCSS

$custom: #4253bc;
$custom-light: #8483d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4253bc",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 188
  },
  "hsl": {
    "h": 231.639,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.48928,
    "c": 0.1652,
    "h": 271.9
  },
  "luminance": 0.10976
}

Semantic roles & 50–950 ramp

primary

#4253BC

secondary

#C9C191

accent

#C550D8

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4253BC

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

Preview Lab → · Contrast checker → · Palette generator →