#5F66DF#5F66DF

#5F66DF is a mid, vivid blue. Relative luminance 0.173; OKLCH L 57.0% C 0.181 H 276.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#5F66DF
RGB	rgb(95, 102, 223)
HSL	hsl(237, 67%, 62%)
HSV	hsv(237, 57%, 87%)
CMYK	cmyk(57.4%, 54.3%, 0%, 12.5%)
CIE-LAB	lab(48.59, 32.21, -62.83)
CIE-LCH	lch(48.59, 70.60, 297.14°)
OKLab	oklab(56.95% 0.0205 -0.1801)
OKLCH	oklch(56.95% 0.181 276.5)
XYZ	xyz(22.7857, 17.2617, 71.9289)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F66DF #DFD85F

analogous

#5FA6DF #5F66DF #985FDF

triadic

#5F66DF #DF5F66 #66DF5F

tetradic

#5F66DF #DF5FA6 #DFD85F #5FDF98

square

#5F66DF #DF5FA6 #DFD85F #5FDF98

split-complementary

#5F66DF #DF985F #A6DF5F

monochromatic

#2128A3 #2C35D5 #5F66DF #9297E9 #C5C8F3

Accessibility & contrast

On white

4.72

#5F66DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#5F66DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5F66DF

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F66DF	#FFFFFF	#000000	##FFFFFF
##5F66DF	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1279E3

Deuteranopia (green-blind)

#006EDC

Tritanopia (blue-blind)

#058299

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5f66df;
/* rgb */ color: rgb(95, 102, 223);
/* oklch */ color: oklch(57.0% 0.181 276.5);

Tailwind

colors: {
  custom: {
    50: '#9791ea',
    500: '#5f66df',
    950: '#000000',
  },
}

SCSS

$custom: #5f66df;
$custom-light: #9791ea;
$custom-dark: #000000;

JSON

{
  "hex": "#5f66df",
  "rgb": {
    "r": 95,
    "g": 102,
    "b": 223
  },
  "hsl": {
    "h": 236.719,
    "s": 66.667,
    "l": 62.353
  },
  "oklch": {
    "l": 0.56951,
    "c": 0.18122,
    "h": 276.5
  },
  "luminance": 0.17263
}

Semantic roles & 50–950 ramp

primary

#5F66DF

secondary

#E4E2B6

accent

#C517CF

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0F0C16

muted

#7E7D84

Preview Lab

Preview with #5F66DF

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

Preview Lab → · Contrast checker → · Palette generator →