#6373EF#6373EF

#6373EF is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.7% C 0.185 H 274.0°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#6373EF
RGB	rgb(99, 115, 239)
HSL	hsl(233, 81%, 66%)
HSV	hsv(233, 59%, 94%)
CMYK	cmyk(58.6%, 51.9%, 0%, 6.3%)
CIE-LAB	lab(53.11, 30.21, -64.51)
CIE-LCH	lch(53.11, 71.23, 295.09°)
OKLab	oklab(60.74% 0.0129 -0.1848)
OKLCH	oklch(60.74% 0.185 274)
XYZ	xyz(26.8512, 21.1440, 84.3109)
Luminance	0.2115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6373EF #EFDF63

analogous

#63B9EF #6373EF #9963EF

triadic

#6373EF #EF6373 #73EF63

tetradic

#6373EF #EF63B9 #EFDF63 #63EF99

square

#6373EF #EF63B9 #EFDF63 #63EF99

split-complementary

#6373EF #EF9963 #B9EF63

monochromatic

#1428C4 #2B41E9 #6373EF #9BA5F5 #D2D7FA

Accessibility & contrast

On white

4.02

#6373EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#6373EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6373EF

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6373EF	#FFFFFF	#000000	##000000
##6373EF	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2985F3

Deuteranopia (green-blind)

#0079EC

Tritanopia (blue-blind)

#0090A6

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #6373ef;
/* rgb */ color: rgb(99, 115, 239);
/* oklch */ color: oklch(60.7% 0.185 274.0);

Tailwind

colors: {
  custom: {
    50: '#9b9bf5',
    500: '#6373ef',
    950: '#000000',
  },
}

SCSS

$custom: #6373ef;
$custom-light: #9b9bf5;
$custom-dark: #000000;

JSON

{
  "hex": "#6373ef",
  "rgb": {
    "r": 99,
    "g": 115,
    "b": 239
  },
  "hsl": {
    "h": 233.143,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.6074,
    "c": 0.18522,
    "h": 274
  },
  "luminance": 0.21146
}

Semantic roles & 50–950 ramp

primary

#6373EF

secondary

#EEE9C0

accent

#C508DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6373EF

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

Preview Lab → · Contrast checker → · Palette generator →