#6378EF#6378EF

#6378EF is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.7% C 0.179 H 272.6°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#6378EF
RGB	rgb(99, 120, 239)
HSL	hsl(231, 81%, 66%)
HSV	hsv(231, 59%, 94%)
CMYK	cmyk(58.6%, 49.8%, 0%, 6.3%)
CIE-LAB	lab(54.36, 27.17, -62.49)
CIE-LCH	lch(54.36, 68.14, 293.50°)
OKLab	oklab(61.69% 0.008 -0.1788)
OKLCH	oklch(61.69% 0.179 272.6)
XYZ	xyz(27.4369, 22.3154, 84.5061)
Luminance	0.2232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6378EF #EFDA63

analogous

#63BEEF #6378EF #9463EF

triadic

#6378EF #EF6378 #78EF63

tetradic

#6378EF #EF63BE #EFDA63 #63EF94

square

#6378EF #EF63BE #EFDA63 #63EF94

split-complementary

#6378EF #EF9463 #BEEF63

monochromatic

#142EC4 #2B48E9 #6378EF #9BA8F5 #D2D8FA

Accessibility & contrast

On white

3.84

#6378EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#6378EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6378EF

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6378EF	#FFFFFF	#000000	##000000
##6378EF	1.00	3.84	5.46	5.46
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3888F3

Deuteranopia (green-blind)

#1B7CED

Tritanopia (blue-blind)

#0093A8

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #6378ef;
/* rgb */ color: rgb(99, 120, 239);
/* oklch */ color: oklch(61.7% 0.179 272.6);

Tailwind

colors: {
  custom: {
    50: '#9b9ef5',
    500: '#6378ef',
    950: '#000000',
  },
}

SCSS

$custom: #6378ef;
$custom-light: #9b9ef5;
$custom-dark: #000000;

JSON

{
  "hex": "#6378ef",
  "rgb": {
    "r": 99,
    "g": 120,
    "b": 239
  },
  "hsl": {
    "h": 231,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.61685,
    "c": 0.17896,
    "h": 272.6
  },
  "luminance": 0.22318
}

Semantic roles & 50–950 ramp

primary

#6378EF

secondary

#EEE7C0

accent

#BE08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6378EF

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

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