#6375BB#6375BB

#6375BB is a mid, moderate blue. Relative luminance 0.190; OKLCH L 57.9% C 0.110 H 271.7°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#6375BB
RGB	rgb(99, 117, 187)
HSL	hsl(228, 39%, 56%)
HSV	hsv(228, 47%, 73%)
CMYK	cmyk(47.1%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(50.64, 12.47, -38.97)
CIE-LCH	lch(50.64, 40.92, 287.75°)
OKLab	oklab(57.9% 0.0032 -0.1099)
OKLCH	oklch(57.9% 0.11 271.7)
XYZ	xyz(20.4737, 18.9619, 49.5853)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6375BB #BBA963

analogous

#63A1BB #6375BB #7D63BB

triadic

#6375BB #BB6375 #75BB63

tetradic

#6375BB #BB63A1 #BBA963 #63BB7D

square

#6375BB #BB63A1 #BBA963 #63BB7D

split-complementary

#6375BB #BB7D63 #A1BB63

monochromatic

#323F72 #44569D #6375BB #8E9BCE #B8C0E0

Accessibility & contrast

On white

4.38

#6375BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#6375BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6375BB

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6375BB	#FFFFFF	#000000	##000000
##6375BB	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7DBE

Deuteranopia (green-blind)

#5375B9

Tritanopia (blue-blind)

#42848F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #6375bb;
/* rgb */ color: rgb(99, 117, 187);
/* oklch */ color: oklch(57.9% 0.110 271.7);

Tailwind

colors: {
  custom: {
    50: '#949cd0',
    500: '#6375bb',
    950: '#000000',
  },
}

SCSS

$custom: #6375bb;
$custom-light: #949cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#6375bb",
  "rgb": {
    "r": 99,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 227.727,
    "s": 39.286,
    "l": 56.078
  },
  "oklch": {
    "l": 0.579,
    "c": 0.10992,
    "h": 271.7
  },
  "luminance": 0.18963
}

Semantic roles & 50–950 ramp

primary

#6375BB

secondary

#CFC8AB

accent

#B759CF

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #6375BB

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

Preview Lab → · Contrast checker → · Palette generator →