#4253B7#4253B7

#4253B7 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.5% C 0.158 H 271.9°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#4253B7
RGB	rgb(66, 83, 183)
HSL	hsl(231, 47%, 49%)
HSV	hsv(231, 64%, 72%)
CMYK	cmyk(63.9%, 54.6%, 0%, 28.2%)
CIE-LAB	lab(39.18, 25.50, -55.09)
CIE-LCH	lch(39.18, 60.70, 294.84°)
OKLab	oklab(48.55% 0.0053 -0.1582)
OKLCH	oklch(48.55% 0.158 271.9)
XYZ	xyz(13.8844, 10.7625, 46.1362)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253B7 #B7A642

analogous

#428EB7 #4253B7 #6C42B7

triadic

#4253B7 #B74253 #53B742

tetradic

#4253B7 #B7428E #B7A642 #42B76C

square

#4253B7 #B7428E #B7A642 #42B76C

split-complementary

#4253B7 #B76C42 #8EB742

monochromatic

#222A5D #323F8A #4253B7 #6C7ACA #99A3DA

Accessibility & contrast

On white

6.66

#4253B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#4253B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253B7

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253B7	#FFFFFF	#000000	##FFFFFF
##4253B7	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0862BA

Deuteranopia (green-blind)

#0057B5

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4253b7;
/* rgb */ color: rgb(66, 83, 183);
/* oklch */ color: oklch(48.5% 0.158 271.9);

Tailwind

colors: {
  custom: {
    50: '#8383cd',
    500: '#4253b7',
    950: '#000000',
  },
}

SCSS

$custom: #4253b7;
$custom-light: #8383cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4253b7",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 183
  },
  "hsl": {
    "h": 231.282,
    "s": 46.988,
    "l": 48.824
  },
  "oklch": {
    "l": 0.48545,
    "c": 0.15829,
    "h": 271.9
  },
  "luminance": 0.10764
}

Semantic roles & 50–950 ramp

primary

#4253B7

secondary

#C6BE8F

accent

#C351D7

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4253B7

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

Preview Lab → · Contrast checker → · Palette generator →