#4253D8#4253D8

#4253D8 is a mid, highly saturated blue. Relative luminance 0.123; OKLCH L 51.2% C 0.202 H 271.6°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#4253D8
RGB	rgb(66, 83, 216)
HSL	hsl(233, 66%, 55%)
HSV	hsv(233, 69%, 85%)
CMYK	cmyk(69.4%, 61.6%, 0%, 15.3%)
CIE-LAB	lab(41.69, 37.03, -70.13)
CIE-LCH	lch(41.69, 79.30, 297.83°)
OKLab	oklab(51.2% 0.0056 -0.2024)
OKLCH	oklch(51.2% 0.202 271.6)
XYZ	xyz(17.7305, 12.3009, 66.3923)
Luminance	0.1230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253D8 #D8C742

analogous

#429ED8 #4253D8 #7C42D8

triadic

#4253D8 #D84253 #53D842

tetradic

#4253D8 #D8429E #D8C742 #42D87C

square

#4253D8 #D8429E #D8C742 #42D87C

split-complementary

#4253D8 #D87C42 #9ED842

monochromatic

#1B2784 #2636B7 #4253D8 #7581E2 #A7AFED

Accessibility & contrast

On white

6.07

#4253D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#4253D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253D8

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253D8	#FFFFFF	#000000	##FFFFFF
##4253D8	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DC

Deuteranopia (green-blind)

#005CD5

Tritanopia (blue-blind)

#00758E

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4253d8;
/* rgb */ color: rgb(66, 83, 216);
/* oklch */ color: oklch(51.2% 0.202 271.6);

Tailwind

colors: {
  custom: {
    50: '#8983e5',
    500: '#4253d8',
    950: '#000000',
  },
}

SCSS

$custom: #4253d8;
$custom-light: #8983e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4253d8",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 216
  },
  "hsl": {
    "h": 233.2,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.51202,
    "c": 0.20249,
    "h": 271.6
  },
  "luminance": 0.12303
}

Semantic roles & 50–950 ramp

primary

#4253D8

secondary

#DAD39C

accent

#D63FE9

background

#F9F8FE

surface

#F1EFFC

border

#CBCAD5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #4253D8

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

Preview Lab → · Contrast checker → · Palette generator →