#6397EC#6397EC

#6397EC is a light, vivid blue. Relative luminance 0.308; OKLCH L 67.8% C 0.138 H 259.8°. Best body text is #000000 at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#6397EC
RGB	rgb(99, 151, 236)
HSL	hsl(217, 78%, 66%)
HSV	hsv(217, 58%, 93%)
CMYK	cmyk(58.1%, 36%, 0%, 7.5%)
CIE-LAB	lab(62.37, 7.64, -48.04)
CIE-LCH	lch(62.37, 48.65, 279.04°)
OKLab	oklab(67.78% -0.0245 -0.1361)
OKLCH	oklch(67.78% 0.138 259.8)
XYZ	xyz(31.3472, 30.8393, 83.6413)
Luminance	0.3084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6397EC #ECB863

analogous

#63DCEC #6397EC #7363EC

triadic

#6397EC #EC6397 #97EC63

tetradic

#6397EC #EC63DC #ECB863 #63EC73

square

#6397EC #EC63DC #ECB863 #63EC73

split-complementary

#6397EC #EC7363 #DCEC63

monochromatic

#1756BE #2C73E5 #6397EC #9ABBF3 #D0E0F9

Accessibility & contrast

On white

2.93

#6397EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.17

#6397EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6397EC

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6397EC	#FFFFFF	#000000	##000000
##6397EC	1.00	2.93	7.17	7.17
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.17	21.00	1.00	1.00
##000000	7.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#739EEF

Deuteranopia (green-blind)

#6291EA

Tritanopia (blue-blind)

#00AAB6

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #6397ec;
/* rgb */ color: rgb(99, 151, 236);
/* oklch */ color: oklch(67.8% 0.138 259.8);

Tailwind

colors: {
  custom: {
    50: '#99b5f2',
    500: '#6397ec',
    950: '#000000',
  },
}

SCSS

$custom: #6397ec;
$custom-light: #99b5f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6397ec",
  "rgb": {
    "r": 99,
    "g": 151,
    "b": 236
  },
  "hsl": {
    "h": 217.226,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.67779,
    "c": 0.13827,
    "h": 259.8
  },
  "luminance": 0.30842
}

Semantic roles & 50–950 ramp

primary

#6397EC

secondary

#ECDBBF

accent

#8C0BDB

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6397EC

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

Preview Lab → · Contrast checker → · Palette generator →