#5F66E7#5F66E7

#5F66E7 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.5% C 0.192 H 276.2°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#5F66E7
RGB	rgb(95, 102, 231)
HSL	hsl(237, 74%, 64%)
HSV	hsv(237, 59%, 91%)
CMYK	cmyk(58.9%, 55.8%, 0%, 9.4%)
CIE-LAB	lab(49.13, 34.79, -66.46)
CIE-LCH	lch(49.13, 75.01, 297.63°)
OKLab	oklab(57.53% 0.0207 -0.1907)
OKLCH	oklch(57.53% 0.192 276.2)
XYZ	xyz(23.8898, 17.7034, 77.7440)
Luminance	0.1771 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F66E7 #E7E05F

analogous

#5FAAE7 #5F66E7 #9C5FE7

triadic

#5F66E7 #E75F66 #66E75F

tetradic

#5F66E7 #E75FAA #E7E05F #5FE79C

square

#5F66E7 #E75FAA #E7E05F #5FE79C

split-complementary

#5F66E7 #E79C5F #AAE75F

monochromatic

#1B22B1 #2A33DF #5F66E7 #9499EF #C9CCF7

Accessibility & contrast

On white

4.62

#5F66E7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#5F66E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5F66E7

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F66E7	#FFFFFF	#000000	##FFFFFF
##5F66E7	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007BEB

Deuteranopia (green-blind)

#006FE4

Tritanopia (blue-blind)

#00859D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5f66e7;
/* rgb */ color: rgb(95, 102, 231);
/* oklch */ color: oklch(57.5% 0.192 276.2);

Tailwind

colors: {
  custom: {
    50: '#9891ef',
    500: '#5f66e7',
    950: '#000000',
  },
}

SCSS

$custom: #5f66e7;
$custom-light: #9891ef;
$custom-dark: #000000;

JSON

{
  "hex": "#5f66e7",
  "rgb": {
    "r": 95,
    "g": 102,
    "b": 231
  },
  "hsl": {
    "h": 236.912,
    "s": 73.913,
    "l": 63.922
  },
  "oklch": {
    "l": 0.57531,
    "c": 0.19186,
    "h": 276.2
  },
  "luminance": 0.17705
}

Semantic roles & 50–950 ramp

primary

#5F66E7

secondary

#E9E6B9

accent

#CC0FD6

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5F66E7

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

Preview Lab → · Contrast checker → · Palette generator →