#4272EB#4272EB

#4272EB is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.5% C 0.190 H 264.8°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4272EB
RGB	rgb(66, 114, 235)
HSL	hsl(223, 81%, 59%)
HSV	hsv(223, 72%, 92%)
CMYK	cmyk(71.9%, 51.5%, 0%, 7.8%)
CIE-LAB	lab(50.91, 24.33, -65.91)
CIE-LCH	lch(50.91, 70.25, 290.26°)
OKLab	oklab(58.54% -0.0172 -0.1896)
OKLCH	oklch(58.54% 0.19 264.8)
XYZ	xyz(23.2542, 19.1886, 81.0594)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4272EB #EBBB42

analogous

#42C6EB #4272EB #6742EB

triadic

#4272EB #EB4272 #72EB42

tetradic

#4272EB #EB42C6 #EBBB42 #42EB67

square

#4272EB #EB42C6 #EBBB42 #42EB67

split-complementary

#4272EB #EB6742 #C6EB42

monochromatic

#113AA2 #174ED9 #4272EB #799BF1 #B1C5F7

Accessibility & contrast

On white

4.34

#4272EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#4272EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4272EB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4272EB	#FFFFFF	#000000	##000000
##4272EB	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2181EF

Deuteranopia (green-blind)

#0072E9

Tritanopia (blue-blind)

#008FA4

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4272eb;
/* rgb */ color: rgb(66, 114, 235);
/* oklch */ color: oklch(58.5% 0.190 264.8);

Tailwind

colors: {
  custom: {
    50: '#8b99f2',
    500: '#4272eb',
    950: '#000000',
  },
}

SCSS

$custom: #4272eb;
$custom-light: #8b99f2;
$custom-dark: #000000;

JSON

{
  "hex": "#4272eb",
  "rgb": {
    "r": 66,
    "g": 114,
    "b": 235
  },
  "hsl": {
    "h": 222.959,
    "s": 80.861,
    "l": 59.02
  },
  "oklch": {
    "l": 0.58543,
    "c": 0.19037,
    "h": 264.8
  },
  "luminance": 0.19191
}

Semantic roles & 50–950 ramp

primary

#4272EB

secondary

#E6D3A3

accent

#BF31F7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #4272EB

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

Preview Lab → · Contrast checker → · Palette generator →