#4272DA#4272DA

#4272DA is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.3% C 0.168 H 263.4°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4272DA
RGB	rgb(66, 114, 218)
HSL	hsl(221, 67%, 56%)
HSV	hsv(221, 70%, 85%)
CMYK	cmyk(69.7%, 47.7%, 0%, 14.5%)
CIE-LAB	lab(49.80, 18.23, -58.12)
CIE-LCH	lch(49.80, 60.91, 287.42°)
OKLab	oklab(57.35% -0.0192 -0.1667)
OKLCH	oklch(57.35% 0.168 263.4)
XYZ	xyz(20.9145, 18.2527, 68.7370)
Luminance	0.1825 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4272DA #DAAA42

analogous

#42BEDA #4272DA #5E42DA

triadic

#4272DA #DA4272 #72DA42

tetradic

#4272DA #DA42BE #DAAA42 #42DA5E

square

#4272DA #DA42BE #DAAA42 #42DA5E

split-complementary

#4272DA #DA5E42 #BEDA42

monochromatic

#1A3D87 #2454BA #4272DA #7598E4 #A8BEEE

Accessibility & contrast

On white

4.52

#4272DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#4272DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4272DA

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4272DA	#FFFFFF	#000000	##000000
##4272DA	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7EDE

Deuteranopia (green-blind)

#1070D8

Tritanopia (blue-blind)

#008A9B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4272da;
/* rgb */ color: rgb(66, 114, 218);
/* oklch */ color: oklch(57.3% 0.168 263.4);

Tailwind

colors: {
  custom: {
    50: '#889ae6',
    500: '#4272da',
    950: '#000000',
  },
}

SCSS

$custom: #4272da;
$custom-light: #889ae6;
$custom-dark: #000000;

JSON

{
  "hex": "#4272da",
  "rgb": {
    "r": 66,
    "g": 114,
    "b": 218
  },
  "hsl": {
    "h": 221.053,
    "s": 67.257,
    "l": 55.686
  },
  "oklch": {
    "l": 0.57347,
    "c": 0.16779,
    "h": 263.4
  },
  "luminance": 0.18255
}

Semantic roles & 50–950 ramp

primary

#4272DA

secondary

#DBC89C

accent

#B43EEA

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #4272DA

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

Preview Lab → · Contrast checker → · Palette generator →