#4274E7#4274E7

#4274E7 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.7% C 0.183 H 263.9°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#4274E7
RGB	rgb(66, 116, 231)
HSL	hsl(222, 77%, 58%)
HSV	hsv(222, 71%, 91%)
CMYK	cmyk(71.4%, 49.8%, 0%, 9.4%)
CIE-LAB	lab(51.17, 21.65, -63.24)
CIE-LCH	lch(51.17, 66.84, 288.90°)
OKLab	oklab(58.66% -0.0193 -0.1817)
OKLCH	oklch(58.66% 0.183 263.9)
XYZ	xyz(22.9109, 19.4161, 78.1260)
Luminance	0.1942 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4274E7 #E7B542

analogous

#42C7E7 #4274E7 #6242E7

triadic

#4274E7 #E74274 #74E742

tetradic

#4274E7 #E742C7 #E7B542 #42E762

square

#4274E7 #E742C7 #E7B542 #42E762

split-complementary

#4274E7 #E76242 #C7E742

monochromatic

#143D9B #1B52D1 #4274E7 #789CEE #AFC4F5

Accessibility & contrast

On white

4.30

#4274E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#4274E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4274E7

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4274E7	#FFFFFF	#000000	##000000
##4274E7	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F82EB

Deuteranopia (green-blind)

#0073E5

Tritanopia (blue-blind)

#008FA3

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4274e7;
/* rgb */ color: rgb(66, 116, 231);
/* oklch */ color: oklch(58.7% 0.183 263.9);

Tailwind

colors: {
  custom: {
    50: '#8a9bef',
    500: '#4274e7',
    950: '#000000',
  },
}

SCSS

$custom: #4274e7;
$custom-light: #8a9bef;
$custom-dark: #000000;

JSON

{
  "hex": "#4274e7",
  "rgb": {
    "r": 66,
    "g": 116,
    "b": 231
  },
  "hsl": {
    "h": 221.818,
    "s": 77.465,
    "l": 58.235
  },
  "oklch": {
    "l": 0.58659,
    "c": 0.18273,
    "h": 263.9
  },
  "luminance": 0.19419
}

Semantic roles & 50–950 ramp

primary

#4274E7

secondary

#E3CFA2

accent

#BA34F4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4274E7

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

Preview Lab → · Contrast checker → · Palette generator →