#6B66EB#6B66EB

#6B66EB is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.7% C 0.195 H 280.2°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#6B66EB
RGB	rgb(107, 102, 235)
HSL	hsl(242, 77%, 66%)
HSV	hsv(242, 57%, 92%)
CMYK	cmyk(54.5%, 56.6%, 0%, 7.8%)
CIE-LAB	lab(50.25, 38.22, -66.87)
CIE-LCH	lch(50.25, 77.02, 299.75°)
OKLab	oklab(58.66% 0.0346 -0.1916)
OKLCH	oklch(58.66% 0.195 280.2)
XYZ	xyz(25.8055, 18.6251, 80.8163)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6B66EB #E6EB66

analogous

#66A3EB #6B66EB #AD66EB

triadic

#6B66EB #EB6B66 #66EB6B

tetradic

#6B66EB #EB66A3 #E6EB66 #66EBAD

square

#6B66EB #EB66A3 #E6EB66 #66EBAD

split-complementary

#6B66EB #EBAD66 #A3EB66

monochromatic

#1F19BE #3730E4 #6B66EB #9F9CF2 #D4D2F9

Accessibility & contrast

On white

4.44

#6B66EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#6B66EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6B66EB

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6B66EB	#FFFFFF	#000000	##000000
##6B66EB	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007DEF

Deuteranopia (green-blind)

#0073E8

Tritanopia (blue-blind)

#2D859F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #6b66eb;
/* rgb */ color: rgb(107, 102, 235);
/* oklch */ color: oklch(58.7% 0.195 280.2);

Tailwind

colors: {
  custom: {
    50: '#9f92f2',
    500: '#6b66eb',
    950: '#000000',
  },
}

SCSS

$custom: #6b66eb;
$custom-light: #9f92f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6b66eb",
  "rgb": {
    "r": 107,
    "g": 102,
    "b": 235
  },
  "hsl": {
    "h": 242.256,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.58658,
    "c": 0.19471,
    "h": 280.2
  },
  "luminance": 0.18627
}

Semantic roles & 50–950 ramp

primary

#6B66EB

secondary

#EBECC1

accent

#D90CD1

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#100D17

muted

#7F7E85

Preview Lab

Preview with #6B66EB

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

Preview Lab → · Contrast checker → · Palette generator →