#4253B2#4253B2

#4253B2 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.2% C 0.151 H 271.9°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#4253B2
RGB	rgb(66, 83, 178)
HSL	hsl(231, 46%, 48%)
HSV	hsv(231, 63%, 70%)
CMYK	cmyk(62.9%, 53.4%, 0%, 30.2%)
CIE-LAB	lab(38.83, 23.74, -52.71)
CIE-LCH	lch(38.83, 57.81, 294.25°)
OKLab	oklab(48.17% 0.005 -0.1512)
OKLCH	oklch(48.17% 0.151 271.9)
XYZ	xyz(13.3732, 10.5580, 43.4440)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253B2 #B2A142

analogous

#428BB2 #4253B2 #6942B2

triadic

#4253B2 #B24253 #53B242

tetradic

#4253B2 #B2428B #B2A142 #42B269

square

#4253B2 #B2428B #B2A142 #42B269

split-complementary

#4253B2 #B26942 #8BB242

monochromatic

#212959 #313E85 #4253B2 #6A78C8 #96A0D8

Accessibility & contrast

On white

6.75

#4253B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#4253B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253B2

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253B2	#FFFFFF	#000000	##FFFFFF
##4253B2	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1661B5

Deuteranopia (green-blind)

#0057B0

Tritanopia (blue-blind)

#00697A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4253b2;
/* rgb */ color: rgb(66, 83, 178);
/* oklch */ color: oklch(48.2% 0.151 271.9);

Tailwind

colors: {
  custom: {
    50: '#8283ca',
    500: '#4253b2',
    950: '#000000',
  },
}

SCSS

$custom: #4253b2;
$custom-light: #8283ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4253b2",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 178
  },
  "hsl": {
    "h": 230.893,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48169,
    "c": 0.15129,
    "h": 271.9
  },
  "luminance": 0.10559
}

Semantic roles & 50–950 ramp

primary

#4253B2

secondary

#C4BB8C

accent

#C252D6

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4253B2

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

Preview Lab → · Contrast checker → · Palette generator →