#4F66DD#4F66DD

#4F66DD is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.8% C 0.183 H 271.1°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#4F66DD
RGB	rgb(79, 102, 221)
HSL	hsl(230, 68%, 59%)
HSV	hsv(230, 64%, 87%)
CMYK	cmyk(64.3%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(47.47, 28.79, -63.54)
CIE-LCH	lch(47.47, 69.76, 294.37°)
OKLab	oklab(55.82% 0.0034 -0.1825)
OKLCH	oklch(55.82% 0.183 271.1)
XYZ	xyz(21.0226, 16.3836, 70.4471)
Luminance	0.1638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F66DD #DDC64F

analogous

#4FADDD #4F66DD #7F4FDD

triadic

#4F66DD #DD4F66 #66DD4F

tetradic

#4F66DD #DD4FAD #DDC64F #4FDD7F

square

#4F66DD #DD4FAD #DDC64F #4FDD7F

split-complementary

#4F66DD #DD7F4F #ADDD4F

monochromatic

#1D3095 #2741C8 #4F66DD #8293E7 #B6BFF1

Accessibility & contrast

On white

4.91

#4F66DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#4F66DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F66DD

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F66DD	#FFFFFF	#000000	##FFFFFF
##4F66DD	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C77E1

Deuteranopia (green-blind)

#006ADB

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4f66dd;
/* rgb */ color: rgb(79, 102, 221);
/* oklch */ color: oklch(55.8% 0.183 271.1);

Tailwind

colors: {
  custom: {
    50: '#8f91e8',
    500: '#4f66dd',
    950: '#000000',
  },
}

SCSS

$custom: #4f66dd;
$custom-light: #8f91e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4f66dd",
  "rgb": {
    "r": 79,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 230.282,
    "s": 67.619,
    "l": 58.824
  },
  "oklch": {
    "l": 0.55816,
    "c": 0.18258,
    "h": 271.1
  },
  "luminance": 0.16385
}

Semantic roles & 50–950 ramp

primary

#4F66DD

secondary

#E0D7A8

accent

#CE3DEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #4F66DD

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

Preview Lab → · Contrast checker → · Palette generator →