#63759B#63759B

#63759B is a mid, moderate blue. Relative luminance 0.177; OKLCH L 56.3% C 0.063 H 264.8°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#63759B
RGB	rgb(99, 117, 155)
HSL	hsl(221, 22%, 50%)
HSV	hsv(221, 36%, 61%)
CMYK	cmyk(36.1%, 24.5%, 0%, 39.2%)
CIE-LAB	lab(49.18, 3.07, -22.65)
CIE-LCH	lch(49.18, 22.86, 277.72°)
OKLab	oklab(56.29% -0.0057 -0.0628)
OKLCH	oklch(56.29% 0.063 264.8)
XYZ	xyz(17.4215, 17.7410, 33.5104)
Luminance	0.1774 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63759B #9B8963

analogous

#63919B #63759B #6D639B

triadic

#63759B #9B6375 #759B63

tetradic

#63759B #9B6391 #9B8963 #639B6D

square

#63759B #9B6391 #9B8963 #639B6D

split-complementary

#63759B #9B6D63 #919B63

monochromatic

#333D50 #4B5976 #63759B #8896B3 #ADB7CB

Accessibility & contrast

On white

4.62

#63759B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#63759B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #63759B

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63759B	#FFFFFF	#000000	##FFFFFF
##63759B	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#68789D

Deuteranopia (green-blind)

#63739A

Tritanopia (blue-blind)

#527D82

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #63759b;
/* rgb */ color: rgb(99, 117, 155);
/* oklch */ color: oklch(56.3% 0.063 264.8);

Tailwind

colors: {
  custom: {
    50: '#919cb8',
    500: '#63759b',
    950: '#000000',
  },
}

SCSS

$custom: #63759b;
$custom-light: #919cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#63759b",
  "rgb": {
    "r": 99,
    "g": 117,
    "b": 155
  },
  "hsl": {
    "h": 220.714,
    "s": 22.047,
    "l": 49.804
  },
  "oklch": {
    "l": 0.56285,
    "c": 0.06303,
    "h": 264.8
  },
  "luminance": 0.17742
}

Semantic roles & 50–950 ramp

primary

#63759B

secondary

#BAB1A0

accent

#A369BF

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0E11

muted

#7E7E80

Preview Lab

Preview with #63759B

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

Preview Lab → · Contrast checker → · Palette generator →