#4253D5#4253D5

#4253D5 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.9% C 0.199 H 271.6°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#4253D5
RGB	rgb(66, 83, 213)
HSL	hsl(233, 64%, 55%)
HSV	hsv(233, 69%, 84%)
CMYK	cmyk(69%, 61%, 0%, 16.5%)
CIE-LAB	lab(41.45, 35.99, -68.80)
CIE-LCH	lch(41.45, 77.65, 297.61°)
OKLab	oklab(50.95% 0.0056 -0.1985)
OKLCH	oklch(50.95% 0.199 271.6)
XYZ	xyz(17.3462, 12.1472, 64.3684)
Luminance	0.1215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253D5 #D5C442

analogous

#429DD5 #4253D5 #7A42D5

triadic

#4253D5 #D54253 #53D542

tetradic

#4253D5 #D5429D #D5C442 #42D57A

square

#4253D5 #D5429D #D5C442 #42D57A

split-complementary

#4253D5 #D57A42 #9DD542

monochromatic

#1C2880 #2838B2 #4253D5 #7481E0 #A6AEEB

Accessibility & contrast

On white

6.12

#4253D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#4253D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253D5

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253D5	#FFFFFF	#000000	##FFFFFF
##4253D5	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D9

Deuteranopia (green-blind)

#005BD2

Tritanopia (blue-blind)

#00748C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4253d5;
/* rgb */ color: rgb(66, 83, 213);
/* oklch */ color: oklch(50.9% 0.199 271.6);

Tailwind

colors: {
  custom: {
    50: '#8883e3',
    500: '#4253d5',
    950: '#000000',
  },
}

SCSS

$custom: #4253d5;
$custom-light: #8883e3;
$custom-dark: #000000;

JSON

{
  "hex": "#4253d5",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 213
  },
  "hsl": {
    "h": 233.061,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.50949,
    "c": 0.19861,
    "h": 271.6
  },
  "luminance": 0.12149
}

Semantic roles & 50–950 ramp

primary

#4253D5

secondary

#D8D19A

accent

#D441E7

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #4253D5

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

Preview Lab → · Contrast checker → · Palette generator →