#666DF2#666DF2

#666DF2 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 60.0% C 0.196 H 276.5°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#666DF2
RGB	rgb(102, 109, 242)
HSL	hsl(237, 84%, 67%)
HSV	hsv(237, 58%, 95%)
CMYK	cmyk(57.9%, 55%, 0%, 5.1%)
CIE-LAB	lab(52.03, 35.33, -67.91)
CIE-LCH	lch(52.03, 76.55, 297.49°)
OKLab	oklab(60.05% 0.0221 -0.1948)
OKLCH	oklch(60.05% 0.196 276.5)
XYZ	xyz(26.9700, 20.1709, 86.4593)
Luminance	0.2017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666DF2 #F2EB66

analogous

#66B3F2 #666DF2 #A566F2

triadic

#666DF2 #F2666D #6DF266

tetradic

#666DF2 #F266B3 #F2EB66 #66F2A5

square

#666DF2 #F266B3 #F2EB66 #66F2A5

split-complementary

#666DF2 #F2A566 #B3F266

monochromatic

#111BCC #2E37ED #666DF2 #9EA3F7 #D7D9FC

Accessibility & contrast

On white

4.17

#666DF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#666DF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #666DF2

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666DF2	#FFFFFF	#000000	##000000
##666DF2	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0082F7

Deuteranopia (green-blind)

#0076EF

Tritanopia (blue-blind)

#008CA5

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #666df2;
/* rgb */ color: rgb(102, 109, 242);
/* oklch */ color: oklch(60.0% 0.196 276.5);

Tailwind

colors: {
  custom: {
    50: '#9d96f7',
    500: '#666df2',
    950: '#000000',
  },
}

SCSS

$custom: #666df2;
$custom-light: #9d96f7;
$custom-dark: #000000;

JSON

{
  "hex": "#666df2",
  "rgb": {
    "r": 102,
    "g": 109,
    "b": 242
  },
  "hsl": {
    "h": 237,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.60046,
    "c": 0.19602,
    "h": 276.5
  },
  "luminance": 0.20173
}

Semantic roles & 50–950 ramp

primary

#666DF2

secondary

#F0EEC4

accent

#D605E1

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #666DF2

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

Preview Lab → · Contrast checker → · Palette generator →