#6377CD#6377CD

#6377CD is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.3% C 0.133 H 271.9°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#6377CD
RGB	rgb(99, 119, 205)
HSL	hsl(229, 51%, 60%)
HSV	hsv(229, 52%, 80%)
CMYK	cmyk(51.7%, 42%, 0%, 19.6%)
CIE-LAB	lab(52.12, 16.85, -46.93)
CIE-LCH	lch(52.12, 49.87, 289.76°)
OKLab	oklab(59.34% 0.0045 -0.1331)
OKLCH	oklch(59.34% 0.133 271.9)
XYZ	xyz(22.7583, 20.2526, 60.4557)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377CD #CDB963

analogous

#63ACCD #6377CD #8463CD

triadic

#6377CD #CD6377 #77CD63

tetradic

#6377CD #CD63AC #CDB963 #63CD84

square

#6377CD #CD63AC #CDB963 #63CD84

split-complementary

#6377CD #CD8463 #ACCD63

monochromatic

#2C3E8A #3B53B8 #6377CD #919FDC #C0C8EB

Accessibility & contrast

On white

4.16

#6377CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#6377CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377CD

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377CD	#FFFFFF	#000000	##000000
##6377CD	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5481D0

Deuteranopia (green-blind)

#4878CB

Tritanopia (blue-blind)

#338998

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #6377cd;
/* rgb */ color: rgb(99, 119, 205);
/* oklch */ color: oklch(59.3% 0.133 271.9);

Tailwind

colors: {
  custom: {
    50: '#969edd',
    500: '#6377cd',
    950: '#000000',
  },
}

SCSS

$custom: #6377cd;
$custom-light: #969edd;
$custom-dark: #000000;

JSON

{
  "hex": "#6377cd",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 205
  },
  "hsl": {
    "h": 228.679,
    "s": 51.456,
    "l": 59.608
  },
  "oklch": {
    "l": 0.59343,
    "c": 0.13319,
    "h": 271.9
  },
  "luminance": 0.20254
}

Semantic roles & 50–950 ramp

primary

#6377CD

secondary

#DAD3B1

accent

#C04DDB

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #6377CD

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

Preview Lab → · Contrast checker → · Palette generator →