#4253DA#4253DA

#4253DA is a mid, highly saturated blue. Relative luminance 0.124; OKLCH L 51.4% C 0.205 H 271.5°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#4253DA
RGB	rgb(66, 83, 218)
HSL	hsl(233, 67%, 56%)
HSV	hsv(233, 70%, 85%)
CMYK	cmyk(69.7%, 61.9%, 0%, 14.5%)
CIE-LAB	lab(41.85, 37.72, -71.01)
CIE-LCH	lch(41.85, 80.40, 297.98°)
OKLab	oklab(51.37% 0.0055 -0.205)
OKLCH	oklch(51.37% 0.205 271.5)
XYZ	xyz(17.9906, 12.4050, 67.7623)
Luminance	0.1241 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253DA #DAC942

analogous

#429FDA #4253DA #7D42DA

triadic

#4253DA #DA4253 #53DA42

tetradic

#4253DA #DA429F #DAC942 #42DA7D

square

#4253DA #DA429F #DAC942 #42DA7D

split-complementary

#4253DA #DA7D42 #9FDA42

monochromatic

#1A2787 #2435BA #4253DA #7582E4 #A8B0EE

Accessibility & contrast

On white

6.03

#4253DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#4253DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253DA

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253DA	#FFFFFF	#000000	##FFFFFF
##4253DA	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADE

Deuteranopia (green-blind)

#005CD7

Tritanopia (blue-blind)

#00768F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4253da;
/* rgb */ color: rgb(66, 83, 218);
/* oklch */ color: oklch(51.4% 0.205 271.5);

Tailwind

colors: {
  custom: {
    50: '#8983e6',
    500: '#4253da',
    950: '#000000',
  },
}

SCSS

$custom: #4253da;
$custom-light: #8983e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4253da",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 218
  },
  "hsl": {
    "h": 233.289,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.51372,
    "c": 0.20506,
    "h": 271.5
  },
  "luminance": 0.12407
}

Semantic roles & 50–950 ramp

primary

#4253DA

secondary

#DBD49C

accent

#D73EEA

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #4253DA

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

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