#6374EF#6374EF

#6374EF is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.9% C 0.184 H 273.7°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#6374EF
RGB	rgb(99, 116, 239)
HSL	hsl(233, 81%, 66%)
HSV	hsv(233, 59%, 94%)
CMYK	cmyk(58.6%, 51.5%, 0%, 6.3%)
CIE-LAB	lab(53.36, 29.60, -64.10)
CIE-LCH	lch(53.36, 70.61, 294.78°)
OKLab	oklab(60.93% 0.012 -0.1836)
OKLCH	oklch(60.93% 0.184 273.7)
XYZ	xyz(26.9659, 21.3733, 84.3491)
Luminance	0.2137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6374EF #EFDE63

analogous

#63BAEF #6374EF #9863EF

triadic

#6374EF #EF6374 #74EF63

tetradic

#6374EF #EF63BA #EFDE63 #63EF98

square

#6374EF #EF63BA #EFDE63 #63EF98

split-complementary

#6374EF #EF9863 #BAEF63

monochromatic

#1429C4 #2B43E9 #6374EF #9BA5F5 #D2D7FA

Accessibility & contrast

On white

3.98

#6374EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#6374EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6374EF

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6374EF	#FFFFFF	#000000	##000000
##6374EF	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D86F3

Deuteranopia (green-blind)

#007AEC

Tritanopia (blue-blind)

#0090A6

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #6374ef;
/* rgb */ color: rgb(99, 116, 239);
/* oklch */ color: oklch(60.9% 0.184 273.7);

Tailwind

colors: {
  custom: {
    50: '#9b9bf5',
    500: '#6374ef',
    950: '#000000',
  },
}

SCSS

$custom: #6374ef;
$custom-light: #9b9bf5;
$custom-dark: #000000;

JSON

{
  "hex": "#6374ef",
  "rgb": {
    "r": 99,
    "g": 116,
    "b": 239
  },
  "hsl": {
    "h": 232.714,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.60927,
    "c": 0.18397,
    "h": 273.7
  },
  "luminance": 0.21375
}

Semantic roles & 50–950 ramp

primary

#6374EF

secondary

#EEE8C0

accent

#C408DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6374EF

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

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