#4274E0#4274E0

#4274E0 is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.2% C 0.173 H 263.3°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4274E0
RGB	rgb(66, 116, 224)
HSL	hsl(221, 72%, 57%)
HSV	hsv(221, 71%, 88%)
CMYK	cmyk(70.5%, 48.2%, 0%, 12.2%)
CIE-LAB	lab(50.72, 19.14, -60.03)
CIE-LCH	lch(50.72, 63.00, 287.68°)
OKLab	oklab(58.17% -0.0201 -0.1723)
OKLCH	oklch(58.17% 0.173 263.3)
XYZ	xyz(21.9419, 19.0286, 73.0231)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4274E0 #E0AE42

analogous

#42C3E0 #4274E0 #5F42E0

triadic

#4274E0 #E04274 #74E042

tetradic

#4274E0 #E042C3 #E0AE42 #42E05F

square

#4274E0 #E042C3 #E0AE42 #42E05F

split-complementary

#4274E0 #E05F42 #C3E042

monochromatic

#183E90 #2054C5 #4274E0 #779BE9 #ABC1F1

Accessibility & contrast

On white

4.37

#4274E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#4274E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4274E0

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4274E0	#FFFFFF	#000000	##000000
##4274E0	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3880E4

Deuteranopia (green-blind)

#0172DE

Tritanopia (blue-blind)

#008D9F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4274e0;
/* rgb */ color: rgb(66, 116, 224);
/* oklch */ color: oklch(58.2% 0.173 263.3);

Tailwind

colors: {
  custom: {
    50: '#899bea',
    500: '#4274e0',
    950: '#000000',
  },
}

SCSS

$custom: #4274e0;
$custom-light: #899bea;
$custom-dark: #000000;

JSON

{
  "hex": "#4274e0",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 224
  },
  "hsl": {
    "h": 221.013,
    "s": 71.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.58172,
    "c": 0.17343,
    "h": 263.3
  },
  "luminance": 0.19031
}

Semantic roles & 50–950 ramp

primary

#4274E0

secondary

#DFCB9F

accent

#B539EF

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4274E0

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

Preview Lab → · Contrast checker → · Palette generator →