#5F66DD#5F66DD

#5F66DD is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.8% C 0.179 H 276.6°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#5F66DD
RGB	rgb(95, 102, 221)
HSL	hsl(237, 65%, 62%)
HSV	hsv(237, 57%, 87%)
CMYK	cmyk(57%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(48.45, 31.56, -61.91)
CIE-LCH	lch(48.45, 69.49, 297.01°)
OKLab	oklab(56.81% 0.0204 -0.1774)
OKLCH	oklch(56.81% 0.179 276.6)
XYZ	xyz(22.5176, 17.1545, 70.5172)
Luminance	0.1716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F66DD #DDD65F

analogous

#5FA5DD #5F66DD #975FDD

triadic

#5F66DD #DD5F66 #66DD5F

tetradic

#5F66DD #DD5FA5 #DDD65F #5FDD97

square

#5F66DD #DD5FA5 #DDD65F #5FDD97

split-complementary

#5F66DD #DD975F #A5DD5F

monochromatic

#2229A0 #2D36D2 #5F66DD #9196E8 #C4C7F2

Accessibility & contrast

On white

4.74

#5F66DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#5F66DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5F66DD

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F66DD	#FFFFFF	#000000	##FFFFFF
##5F66DD	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1878E1

Deuteranopia (green-blind)

#006EDB

Tritanopia (blue-blind)

#0E8298

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5f66dd;
/* rgb */ color: rgb(95, 102, 221);
/* oklch */ color: oklch(56.8% 0.179 276.6);

Tailwind

colors: {
  custom: {
    50: '#9791e8',
    500: '#5f66dd',
    950: '#000000',
  },
}

SCSS

$custom: #5f66dd;
$custom-light: #9791e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5f66dd",
  "rgb": {
    "r": 95,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 236.667,
    "s": 64.948,
    "l": 61.961
  },
  "oklch": {
    "l": 0.56808,
    "c": 0.17853,
    "h": 276.6
  },
  "luminance": 0.17156
}

Semantic roles & 50–950 ramp

primary

#5F66DD

secondary

#E3E1B5

accent

#C319CD

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5F66DD

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

Preview Lab → · Contrast checker → · Palette generator →