#4253D3#4253D3

#4253D3 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.8% C 0.196 H 271.7°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#4253D3
RGB	rgb(66, 83, 211)
HSL	hsl(233, 62%, 54%)
HSV	hsv(233, 69%, 83%)
CMYK	cmyk(68.7%, 60.7%, 0%, 17.3%)
CIE-LAB	lab(41.29, 35.29, -67.92)
CIE-LCH	lch(41.29, 76.54, 297.46°)
OKLab	oklab(50.78% 0.0057 -0.1959)
OKLCH	oklch(50.78% 0.196 271.7)
XYZ	xyz(17.0939, 12.0463, 63.0397)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4253D3 #D3C242

analogous

#429BD3 #4253D3 #7A42D3

triadic

#4253D3 #D34253 #53D342

tetradic

#4253D3 #D3429B #D3C242 #42D37A

square

#4253D3 #D3429B #D3C242 #42D37A

split-complementary

#4253D3 #D37A42 #9BD342

monochromatic

#1D287D #2938AF #4253D3 #7480DF #A5ADEA

Accessibility & contrast

On white

6.16

#4253D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4253D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4253D3

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4253D3	#FFFFFF	#000000	##FFFFFF
##4253D3	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D7

Deuteranopia (green-blind)

#005BD1

Tritanopia (blue-blind)

#00738B

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4253d3;
/* rgb */ color: rgb(66, 83, 211);
/* oklch */ color: oklch(50.8% 0.196 271.7);

Tailwind

colors: {
  custom: {
    50: '#8883e1',
    500: '#4253d3',
    950: '#000000',
  },
}

SCSS

$custom: #4253d3;
$custom-light: #8883e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4253d3",
  "rgb": {
    "r": 66,
    "g": 83,
    "b": 211
  },
  "hsl": {
    "h": 232.966,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.50781,
    "c": 0.196,
    "h": 271.7
  },
  "luminance": 0.12048
}

Semantic roles & 50–950 ramp

primary

#4253D3

secondary

#D7D09A

accent

#D242E5

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4253D3

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

Preview Lab → · Contrast checker → · Palette generator →