#4253CC#4253CC

#4253CC is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.2% C 0.187 H 271.8°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#4253CC
RGB	rgb(66, 83, 204)
HSL	hsl(233, 58%, 53%)
HSV	hsv(233, 68%, 80%)
CMYK	cmyk(67.6%, 59.3%, 0%, 20%)
CIE-LAB	lab(40.74, 32.86, -64.78)
CIE-LCH	lch(40.74, 72.64, 296.89°)
OKLab	oklab(50.2% 0.0058 -0.1867)
OKLCH	oklch(50.2% 0.187 271.8)
XYZ	xyz(16.2354, 11.7029, 58.5183)
Luminance	0.1170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253CC #CCBB42

analogous

#4298CC #4253CC #7642CC

triadic

#4253CC #CC4253 #53CC42

tetradic

#4253CC #CC4298 #CCBB42 #42CC76

square

#4253CC #CC4298 #CCBB42 #42CC76

split-complementary

#4253CC #CC7642 #98CC42

monochromatic

#1F2A74 #2C3BA4 #4253CC #727FD9 #A2ABE6

Accessibility & contrast

On white

6.29

#4253CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4253CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253CC

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253CC	#FFFFFF	#000000	##FFFFFF
##4253CC	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066D0

Deuteranopia (green-blind)

#005ACA

Tritanopia (blue-blind)

#007187

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4253cc;
/* rgb */ color: rgb(66, 83, 204);
/* oklch */ color: oklch(50.2% 0.187 271.8);

Tailwind

colors: {
  custom: {
    50: '#8783dc',
    500: '#4253cc',
    950: '#000000',
  },
}

SCSS

$custom: #4253cc;
$custom-light: #8783dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4253cc",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 204
  },
  "hsl": {
    "h": 232.609,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.50203,
    "c": 0.1868,
    "h": 271.8
  },
  "luminance": 0.11704
}

Semantic roles & 50–950 ramp

primary

#4253CC

secondary

#D3CB97

accent

#CE47E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #4253CC

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

Preview Lab → · Contrast checker → · Palette generator →