#63759D#63759D

#63759D is a mid, moderate blue. Relative luminance 0.178; OKLCH L 56.4% C 0.066 H 265.6°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#63759D
RGB	rgb(99, 117, 157)
HSL	hsl(221, 23%, 50%)
HSV	hsv(221, 37%, 62%)
CMYK	cmyk(36.9%, 25.5%, 0%, 38.4%)
CIE-LAB	lab(49.26, 3.63, -23.70)
CIE-LCH	lch(49.26, 23.97, 278.71°)
OKLab	oklab(56.38% -0.0051 -0.0657)
OKLCH	oklch(56.38% 0.066 265.6)
XYZ	xyz(17.5909, 17.8088, 34.4023)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63759D #9D8B63

analogous

#63929D #63759D #6E639D

triadic

#63759D #9D6375 #759D63

tetradic

#63759D #9D6392 #9D8B63 #639D6E

square

#63759D #9D6392 #9D8B63 #639D6E

split-complementary

#63759D #9D6E63 #929D63

monochromatic

#343D52 #4B5978 #63759D #8996B5 #AEB8CC

Accessibility & contrast

On white

4.60

#63759D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#63759D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #63759D

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63759D	#FFFFFF	#000000	##FFFFFF
##63759D	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68789F

Deuteranopia (green-blind)

#62739C

Tritanopia (blue-blind)

#517D83

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #63759d;
/* rgb */ color: rgb(99, 117, 157);
/* oklch */ color: oklch(56.4% 0.066 265.6);

Tailwind

colors: {
  custom: {
    50: '#919cba',
    500: '#63759d',
    950: '#000000',
  },
}

SCSS

$custom: #63759d;
$custom-light: #919cba;
$custom-dark: #000000;

JSON

{
  "hex": "#63759d",
  "rgb": {
    "r": 99,
    "g": 117,
    "b": 157
  },
  "hsl": {
    "h": 221.379,
    "s": 22.835,
    "l": 50.196
  },
  "oklch": {
    "l": 0.56377,
    "c": 0.06594,
    "h": 265.6
  },
  "luminance": 0.1781
}

Semantic roles & 50–950 ramp

primary

#63759D

secondary

#BBB3A1

accent

#A468BF

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0E11

muted

#7E7E80

Preview Lab

Preview with #63759D

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

Preview Lab → · Contrast checker → · Palette generator →