#6370F1#6370F1

#6370F1 is a mid, vivid blue. Relative luminance 0.206; OKLCH L 60.3% C 0.192 H 274.8°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#6370F1
RGB	rgb(99, 112, 241)
HSL	hsl(235, 84%, 67%)
HSV	hsv(235, 59%, 95%)
CMYK	cmyk(58.9%, 53.5%, 0%, 5.5%)
CIE-LAB	lab(52.50, 32.67, -66.61)
CIE-LCH	lch(52.50, 74.19, 296.13°)
OKLab	oklab(60.33% 0.0159 -0.191)
OKLCH	oklch(60.33% 0.192 274.8)
XYZ	xyz(26.8118, 20.5898, 85.7634)
Luminance	0.2059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370F1 #F1E463

analogous

#63B7F1 #6370F1 #9D63F1

triadic

#6370F1 #F16370 #70F163

tetradic

#6370F1 #F163B7 #F1E463 #63F19D

square

#6370F1 #F163B7 #F1E463 #63F19D

split-complementary

#6370F1 #F19D63 #B7F163

monochromatic

#1223C8 #2B3DEC #6370F1 #9BA3F6 #D3D7FB

Accessibility & contrast

On white

4.10

#6370F1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#6370F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370F1

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370F1	#FFFFFF	#000000	##000000
##6370F1	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1884F5

Deuteranopia (green-blind)

#0077EE

Tritanopia (blue-blind)

#008EA6

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #6370f1;
/* rgb */ color: rgb(99, 112, 241);
/* oklch */ color: oklch(60.3% 0.192 274.8);

Tailwind

colors: {
  custom: {
    50: '#9b99f6',
    500: '#6370f1',
    950: '#000000',
  },
}

SCSS

$custom: #6370f1;
$custom-light: #9b99f6;
$custom-dark: #000000;

JSON

{
  "hex": "#6370f1",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 241
  },
  "hsl": {
    "h": 234.507,
    "s": 83.529,
    "l": 66.667
  },
  "oklch": {
    "l": 0.60325,
    "c": 0.19164,
    "h": 274.8
  },
  "luminance": 0.20592
}

Semantic roles & 50–950 ramp

primary

#6370F1

secondary

#EFEBC1

accent

#CC06E0

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #6370F1

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

Preview Lab → · Contrast checker → · Palette generator →