#5F63BB#5F63BB

#5F63BB is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.9% C 0.135 H 278.9°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#5F63BB
RGB	rgb(95, 99, 187)
HSL	hsl(237, 40%, 55%)
HSV	hsv(237, 49%, 73%)
CMYK	cmyk(49.2%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(45.56, 22.59, -47.06)
CIE-LCH	lch(45.56, 52.20, 295.64°)
OKLab	oklab(53.94% 0.0209 -0.1337)
OKLCH	oklch(53.94% 0.135 278.9)
XYZ	xyz(18.1480, 14.9434, 48.9322)
Luminance	0.1494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F63BB #BBB75F

analogous

#5F91BB #5F63BB #895FBB

triadic

#5F63BB #BB5F63 #63BB5F

tetradic

#5F63BB #BB5F91 #BBB75F #5FBB89

square

#5F63BB #BB5F91 #BBB75F #5FBB89

split-complementary

#5F63BB #BB895F #91BB5F

monochromatic

#303270 #42469B #5F63BB #8A8DCD #B5B7E0

Accessibility & contrast

On white

5.26

#5F63BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#5F63BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5F63BB

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F63BB	#FFFFFF	#000000	##FFFFFF
##5F63BB	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D70BE

Deuteranopia (green-blind)

#3568B9

Tritanopia (blue-blind)

#3C7686

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5f63bb;
/* rgb */ color: rgb(95, 99, 187);
/* oklch */ color: oklch(53.9% 0.135 278.9);

Tailwind

colors: {
  custom: {
    50: '#928fd0',
    500: '#5f63bb',
    950: '#000000',
  },
}

SCSS

$custom: #5f63bb;
$custom-light: #928fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#5f63bb",
  "rgb": {
    "r": 95,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 237.391,
    "s": 40.351,
    "l": 55.294
  },
  "oklch": {
    "l": 0.53942,
    "c": 0.13535,
    "h": 278.9
  },
  "luminance": 0.14944
}

Semantic roles & 50–950 ramp

primary

#5F63BB

secondary

#CECCA8

accent

#CB58D0

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #5F63BB

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

Preview Lab → · Contrast checker → · Palette generator →