#4274E1#4274E1

#4274E1 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.2% C 0.175 H 263.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4274E1
RGB	rgb(66, 116, 225)
HSL	hsl(221, 73%, 57%)
HSV	hsv(221, 71%, 88%)
CMYK	cmyk(70.7%, 48.4%, 0%, 11.8%)
CIE-LAB	lab(50.78, 19.49, -60.49)
CIE-LCH	lch(50.78, 63.55, 287.86°)
OKLab	oklab(58.24% -0.02 -0.1736)
OKLCH	oklch(58.24% 0.175 263.4)
XYZ	xyz(22.0779, 19.0830, 73.7394)
Luminance	0.1908 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4274E1 #E1AF42

analogous

#42C4E1 #4274E1 #6042E1

triadic

#4274E1 #E14274 #74E142

tetradic

#4274E1 #E142C4 #E1AF42 #42E160

square

#4274E1 #E142C4 #E1AF42 #42E160

split-complementary

#4274E1 #E16042 #C4E142

monochromatic

#173E92 #1F54C6 #4274E1 #779BE9 #ACC2F2

Accessibility & contrast

On white

4.36

#4274E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#4274E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4274E1

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4274E1	#FFFFFF	#000000	##000000
##4274E1	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3781E5

Deuteranopia (green-blind)

#0072DF

Tritanopia (blue-blind)

#008EA0

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4274e1;
/* rgb */ color: rgb(66, 116, 225);
/* oklch */ color: oklch(58.2% 0.175 263.4);

Tailwind

colors: {
  custom: {
    50: '#899beb',
    500: '#4274e1',
    950: '#000000',
  },
}

SCSS

$custom: #4274e1;
$custom-light: #899beb;
$custom-dark: #000000;

JSON

{
  "hex": "#4274e1",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 225
  },
  "hsl": {
    "h": 221.132,
    "s": 72.603,
    "l": 57.059
  },
  "oklch": {
    "l": 0.58241,
    "c": 0.17477,
    "h": 263.4
  },
  "luminance": 0.19085
}

Semantic roles & 50–950 ramp

primary

#4274E1

secondary

#E0CB9F

accent

#B638EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4274E1

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

Preview Lab → · Contrast checker → · Palette generator →