#4371EC#4371EC

#4371EC is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.5% C 0.193 H 265.4°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4371EC
RGB	rgb(67, 113, 236)
HSL	hsl(224, 82%, 59%)
HSV	hsv(224, 72%, 93%)
CMYK	cmyk(71.6%, 52.1%, 0%, 7.5%)
CIE-LAB	lab(50.75, 25.44, -66.71)
CIE-LCH	lch(50.75, 71.40, 290.87°)
OKLab	oklab(58.46% -0.0156 -0.192)
OKLCH	oklch(58.46% 0.193 265.4)
XYZ	xyz(23.3549, 19.0572, 81.7882)
Luminance	0.1906 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4371EC #ECBE43

analogous

#43C5EC #4371EC #6A43EC

triadic

#4371EC #EC4371 #71EC43

tetradic

#4371EC #EC43C5 #ECBE43 #43EC6A

square

#4371EC #EC43C5 #ECBE43 #43EC6A

split-complementary

#4371EC #EC6A43 #C5EC43

monochromatic

#1139A4 #164CDC #4371EC #7B9BF2 #B2C5F7

Accessibility & contrast

On white

4.36

#4371EC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#4371EC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4371EC

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4371EC	#FFFFFF	#000000	##000000
##4371EC	1.00	4.36	4.81	4.81
#FFFFFF	4.36	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)

#1A81F0

Deuteranopia (green-blind)

#0071EA

Tritanopia (blue-blind)

#008FA4

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4371ec;
/* rgb */ color: rgb(67, 113, 236);
/* oklch */ color: oklch(58.5% 0.193 265.4);

Tailwind

colors: {
  custom: {
    50: '#8c99f3',
    500: '#4371ec',
    950: '#000000',
  },
}

SCSS

$custom: #4371ec;
$custom-light: #8c99f3;
$custom-dark: #000000;

JSON

{
  "hex": "#4371ec",
  "rgb": {
    "r": 67,
    "g": 113,
    "b": 236
  },
  "hsl": {
    "h": 223.669,
    "s": 81.643,
    "l": 59.412
  },
  "oklch": {
    "l": 0.5846,
    "c": 0.19259,
    "h": 265.4
  },
  "luminance": 0.1906
}

Semantic roles & 50–950 ramp

primary

#4371EC

secondary

#E6D4A4

accent

#C230F8

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #4371EC

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

Preview Lab → · Contrast checker → · Palette generator →