#5F66E6#5F66E6

#5F66E6 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 57.5% C 0.191 H 276.2°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#5F66E6
RGB	rgb(95, 102, 230)
HSL	hsl(237, 73%, 64%)
HSV	hsv(237, 59%, 90%)
CMYK	cmyk(58.7%, 55.7%, 0%, 9.8%)
CIE-LAB	lab(49.07, 34.47, -66.01)
CIE-LCH	lch(49.07, 74.47, 297.58°)
OKLab	oklab(57.46% 0.0207 -0.1894)
OKLCH	oklch(57.46% 0.191 276.2)
XYZ	xyz(23.7490, 17.6470, 77.0023)
Luminance	0.1765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F66E6 #E6DF5F

analogous

#5FA9E6 #5F66E6 #9B5FE6

triadic

#5F66E6 #E65F66 #66E65F

tetradic

#5F66E6 #E65FA9 #E6DF5F #5FE69B

square

#5F66E6 #E65FA9 #E6DF5F #5FE69B

split-complementary

#5F66E6 #E69B5F #A9E65F

monochromatic

#1B23AF #2A33DE #5F66E6 #9499EE #C9CBF7

Accessibility & contrast

On white

4.64

#5F66E6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#5F66E6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5F66E6

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F66E6	#FFFFFF	#000000	##FFFFFF
##5F66E6	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AEA

Deuteranopia (green-blind)

#006FE3

Tritanopia (blue-blind)

#00849C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5f66e6;
/* rgb */ color: rgb(95, 102, 230);
/* oklch */ color: oklch(57.5% 0.191 276.2);

Tailwind

colors: {
  custom: {
    50: '#9891ef',
    500: '#5f66e6',
    950: '#000000',
  },
}

SCSS

$custom: #5f66e6;
$custom-light: #9891ef;
$custom-dark: #000000;

JSON

{
  "hex": "#5f66e6",
  "rgb": {
    "r": 95,
    "g": 102,
    "b": 230
  },
  "hsl": {
    "h": 236.889,
    "s": 72.973,
    "l": 63.725
  },
  "oklch": {
    "l": 0.57458,
    "c": 0.19054,
    "h": 276.2
  },
  "luminance": 0.17649
}

Semantic roles & 50–950 ramp

primary

#5F66E6

secondary

#E8E6B9

accent

#CB10D5

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #5F66E6

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

Preview Lab → · Contrast checker → · Palette generator →