#5F66EB#5F66EB

#5F66EB is a mid, vivid blue. Relative luminance 0.179; OKLCH L 57.8% C 0.197 H 276.1°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#5F66EB
RGB	rgb(95, 102, 235)
HSL	hsl(237, 78%, 65%)
HSV	hsv(237, 60%, 92%)
CMYK	cmyk(59.6%, 56.6%, 0%, 7.8%)
CIE-LAB	lab(49.41, 36.09, -68.25)
CIE-LCH	lch(49.41, 77.21, 297.87°)
OKLab	oklab(57.83% 0.0208 -0.196)
OKLCH	oklch(57.83% 0.197 276.1)
XYZ	xyz(24.4612, 17.9319, 80.7533)
Luminance	0.1793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5F66EB #EBE45F

analogous

#5FACEB #5F66EB #9E5FEB

triadic

#5F66EB #EB5F66 #66EB5F

tetradic

#5F66EB #EB5FAC #EBE45F #5FEB9E

square

#5F66EB #EB5FAC #EBE45F #5FEB9E

split-complementary

#5F66EB #EB9E5F #ACEB5F

monochromatic

#171FB9 #2932E4 #5F66EB #959AF2 #CCCEF9

Accessibility & contrast

On white

4.58

#5F66EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#5F66EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5F66EB

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5F66EB	#FFFFFF	#000000	##000000
##5F66EB	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CEF

Deuteranopia (green-blind)

#0070E8

Tritanopia (blue-blind)

#00869F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5f66eb;
/* rgb */ color: rgb(95, 102, 235);
/* oklch */ color: oklch(57.8% 0.197 276.1);

Tailwind

colors: {
  custom: {
    50: '#9991f2',
    500: '#5f66eb',
    950: '#000000',
  },
}

SCSS

$custom: #5f66eb;
$custom-light: #9991f2;
$custom-dark: #000000;

JSON

{
  "hex": "#5f66eb",
  "rgb": {
    "r": 95,
    "g": 102,
    "b": 235
  },
  "hsl": {
    "h": 237,
    "s": 77.778,
    "l": 64.706
  },
  "oklch": {
    "l": 0.57827,
    "c": 0.19712,
    "h": 276.1
  },
  "luminance": 0.17934
}

Semantic roles & 50–950 ramp

primary

#5F66EB

secondary

#EBE9BB

accent

#D00BDA

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0D17

muted

#7F7D85

Preview Lab

Preview with #5F66EB

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

Preview Lab → · Contrast checker → · Palette generator →