#5371EE#5371EE

#5371EE is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.4% C 0.191 H 269.6°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5371EE
RGB	rgb(83, 113, 238)
HSL	hsl(228, 82%, 63%)
HSV	hsv(228, 65%, 93%)
CMYK	cmyk(65.1%, 52.5%, 0%, 6.7%)
CIE-LAB	lab(51.63, 28.41, -66.37)
CIE-LCH	lch(51.63, 72.20, 293.17°)
OKLab	oklab(59.37% -0.0014 -0.1906)
OKLCH	oklch(59.37% 0.191 269.6)
XYZ	xyz(24.8998, 19.8200, 83.3858)
Luminance	0.1982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5371EE #EED053

analogous

#53BFEE #5371EE #8253EE

triadic

#5371EE #EE5371 #71EE53

tetradic

#5371EE #EE53BF #EED053 #53EE82

square

#5371EE #EE53BF #EED053 #53EE82

split-complementary

#5371EE #EE8253 #BFEE53

monochromatic

#1231B5 #1B43E8 #5371EE #8B9FF4 #C2CDF9

Accessibility & contrast

On white

4.23

#5371EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#5371EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5371EE

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5371EE	#FFFFFF	#000000	##000000
##5371EE	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C82F2

Deuteranopia (green-blind)

#0074EB

Tritanopia (blue-blind)

#008FA5

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5371ee;
/* rgb */ color: rgb(83, 113, 238);
/* oklch */ color: oklch(59.4% 0.191 269.6);

Tailwind

colors: {
  custom: {
    50: '#9399f4',
    500: '#5371ee',
    950: '#000000',
  },
}

SCSS

$custom: #5371ee;
$custom-light: #9399f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5371ee",
  "rgb": {
    "r": 83,
    "g": 113,
    "b": 238
  },
  "hsl": {
    "h": 228.387,
    "s": 82.011,
    "l": 62.941
  },
  "oklch": {
    "l": 0.5937,
    "c": 0.19065,
    "h": 269.6
  },
  "luminance": 0.19822
}

Semantic roles & 50–950 ramp

primary

#5371EE

secondary

#EADFB2

accent

#B507DE

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5371EE

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

Preview Lab → · Contrast checker → · Palette generator →