#4277EA#4277EA

#4277EA is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.5% C 0.183 H 263.3°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#4277EA
RGB	rgb(66, 119, 234)
HSL	hsl(221, 80%, 59%)
HSV	hsv(221, 72%, 92%)
CMYK	cmyk(71.8%, 49.1%, 0%, 8.2%)
CIE-LAB	lab(52.16, 20.85, -63.32)
CIE-LCH	lch(52.16, 66.66, 288.23°)
OKLab	oklab(59.48% -0.0214 -0.1819)
OKLCH	oklch(59.48% 0.183 263.3)
XYZ	xyz(23.6896, 20.2899, 80.4938)
Luminance	0.2029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4277EA #EAB542

analogous

#42CBEA #4277EA #6142EA

triadic

#4277EA #EA4277 #77EA42

tetradic

#4277EA #EA42CB #EAB542 #42EA61

square

#4277EA #EA42CB #EAB542 #42EA61

split-complementary

#4277EA #EA6142 #CBEA42

monochromatic

#123FA0 #1854D7 #4277EA #799FF0 #B0C6F6

Accessibility & contrast

On white

4.15

#4277EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#4277EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4277EA

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4277EA	#FFFFFF	#000000	##000000
##4277EA	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3485EE

Deuteranopia (green-blind)

#0075E8

Tritanopia (blue-blind)

#0092A5

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4277ea;
/* rgb */ color: rgb(66, 119, 234);
/* oklch */ color: oklch(59.5% 0.183 263.3);

Tailwind

colors: {
  custom: {
    50: '#8b9df1',
    500: '#4277ea',
    950: '#000000',
  },
}

SCSS

$custom: #4277ea;
$custom-light: #8b9df1;
$custom-dark: #000000;

JSON

{
  "hex": "#4277ea",
  "rgb": {
    "r": 66,
    "g": 119,
    "b": 234
  },
  "hsl": {
    "h": 221.071,
    "s": 80,
    "l": 58.824
  },
  "oklch": {
    "l": 0.59478,
    "c": 0.18314,
    "h": 263.3
  },
  "luminance": 0.20292
}

Semantic roles & 50–950 ramp

primary

#4277EA

secondary

#E5D0A3

accent

#B831F6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4277EA

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

Preview Lab → · Contrast checker → · Palette generator →