#6370EF#6370EF

#6370EF is a mid, vivid blue. Relative luminance 0.205; OKLCH L 60.2% C 0.189 H 274.8°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#6370EF
RGB	rgb(99, 112, 239)
HSL	hsl(234, 81%, 66%)
HSV	hsv(234, 59%, 94%)
CMYK	cmyk(58.6%, 53.1%, 0%, 6.3%)
CIE-LAB	lab(52.37, 32.02, -65.70)
CIE-LCH	lch(52.37, 73.09, 295.98°)
OKLab	oklab(60.18% 0.0158 -0.1883)
OKLCH	oklch(60.18% 0.189 274.8)
XYZ	xyz(26.5147, 20.4710, 84.1987)
Luminance	0.2047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370EF #EFE263

analogous

#63B6EF #6370EF #9C63EF

triadic

#6370EF #EF6370 #70EF63

tetradic

#6370EF #EF63B6 #EFE263 #63EF9C

square

#6370EF #EF63B6 #EFE263 #63EF9C

split-complementary

#6370EF #EF9C63 #B6EF63

monochromatic

#1424C4 #2B3DE9 #6370EF #9BA3F5 #D2D6FA

Accessibility & contrast

On white

4.12

#6370EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#6370EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370EF

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370EF	#FFFFFF	#000000	##000000
##6370EF	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E83F3

Deuteranopia (green-blind)

#0077EC

Tritanopia (blue-blind)

#008EA5

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #6370ef;
/* rgb */ color: rgb(99, 112, 239);
/* oklch */ color: oklch(60.2% 0.189 274.8);

Tailwind

colors: {
  custom: {
    50: '#9b99f5',
    500: '#6370ef',
    950: '#000000',
  },
}

SCSS

$custom: #6370ef;
$custom-light: #9b99f5;
$custom-dark: #000000;

JSON

{
  "hex": "#6370ef",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 239
  },
  "hsl": {
    "h": 234.429,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.60184,
    "c": 0.18898,
    "h": 274.8
  },
  "luminance": 0.20473
}

Semantic roles & 50–950 ramp

primary

#6370EF

secondary

#EEEAC0

accent

#CA08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #6370EF

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

Preview Lab → · Contrast checker → · Palette generator →