#6378CF#6378CF

#6378CF is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.7% C 0.135 H 271.6°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#6378CF
RGB	rgb(99, 120, 207)
HSL	hsl(228, 53%, 60%)
HSV	hsv(228, 52%, 81%)
CMYK	cmyk(52.2%, 42%, 0%, 18.8%)
CIE-LAB	lab(52.50, 16.88, -47.47)
CIE-LCH	lch(52.50, 50.38, 289.57°)
OKLab	oklab(59.67% 0.0037 -0.1347)
OKLCH	oklch(59.67% 0.135 271.6)
XYZ	xyz(23.1209, 20.5890, 61.7751)
Luminance	0.2059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6378CF #CFBA63

analogous

#63AECF #6378CF #8463CF

triadic

#6378CF #CF6378 #78CF63

tetradic

#6378CF #CF63AE #CFBA63 #63CF84

square

#6378CF #CF63AE #CFBA63 #63CF84

split-complementary

#6378CF #CF8463 #AECF63

monochromatic

#2B3E8C #3A53BB #6378CF #92A1DD #C1C9EC

Accessibility & contrast

On white

4.10

#6378CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#6378CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6378CF

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6378CF	#FFFFFF	#000000	##000000
##6378CF	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)

#5482D2

Deuteranopia (green-blind)

#4879CD

Tritanopia (blue-blind)

#318B99

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #6378cf;
/* rgb */ color: rgb(99, 120, 207);
/* oklch */ color: oklch(59.7% 0.135 271.6);

Tailwind

colors: {
  custom: {
    50: '#969ede',
    500: '#6378cf',
    950: '#000000',
  },
}

SCSS

$custom: #6378cf;
$custom-light: #969ede;
$custom-dark: #000000;

JSON

{
  "hex": "#6378cf",
  "rgb": {
    "r": 99,
    "g": 120,
    "b": 207
  },
  "hsl": {
    "h": 228.333,
    "s": 52.941,
    "l": 60
  },
  "oklch": {
    "l": 0.59666,
    "c": 0.13473,
    "h": 271.6
  },
  "luminance": 0.20591
}

Semantic roles & 50–950 ramp

primary

#6378CF

secondary

#DCD4B2

accent

#C04BDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #6378CF

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

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