#6389EF#6389EF

#6389EF is a light, vivid blue. Relative luminance 0.268; OKLCH L 65.0% C 0.158 H 266.7°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#6389EF
RGB	rgb(99, 137, 239)
HSL	hsl(224, 81%, 66%)
HSV	hsv(224, 59%, 94%)
CMYK	cmyk(58.6%, 42.7%, 0%, 6.3%)
CIE-LAB	lab(58.76, 16.91, -55.43)
CIE-LCH	lch(58.76, 57.95, 286.96°)
OKLab	oklab(65.04% -0.0092 -0.1578)
OKLCH	oklch(65.04% 0.158 266.7)
XYZ	xyz(29.6659, 26.7735, 85.2491)
Luminance	0.2678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6389EF #EFC963

analogous

#63CFEF #6389EF #8363EF

triadic

#6389EF #EF6389 #89EF63

tetradic

#6389EF #EF63CF #EFC963 #63EF83

square

#6389EF #EF63CF #EFC963 #63EF83

split-complementary

#6389EF #EF8363 #CFEF63

monochromatic

#1444C4 #2B5FE9 #6389EF #9BB3F5 #D2DDFA

Accessibility & contrast

On white

3.30

#6389EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#6389EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6389EF

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6389EF	#FFFFFF	#000000	##000000
##6389EF	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B94F3

Deuteranopia (green-blind)

#4887ED

Tritanopia (blue-blind)

#00A0B0

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #6389ef;
/* rgb */ color: rgb(99, 137, 239);
/* oklch */ color: oklch(65.0% 0.158 266.7);

Tailwind

colors: {
  custom: {
    50: '#9aabf5',
    500: '#6389ef',
    950: '#000000',
  },
}

SCSS

$custom: #6389ef;
$custom-light: #9aabf5;
$custom-dark: #000000;

JSON

{
  "hex": "#6389ef",
  "rgb": {
    "r": 99,
    "g": 137,
    "b": 239
  },
  "hsl": {
    "h": 223.714,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.65042,
    "c": 0.15812,
    "h": 266.7
  },
  "luminance": 0.26776
}

Semantic roles & 50–950 ramp

primary

#6389EF

secondary

#EEE1C0

accent

#A408DE

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6389EF

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

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