#661E90#661E90

#661E90 is a dark, vivid violet. Relative luminance 0.058; OKLCH L 40.9% C 0.177 H 309.2°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#661E90
RGB	rgb(102, 30, 144)
HSL	hsl(278, 66%, 34%)
HSV	hsv(278, 79%, 56%)
CMYK	cmyk(29.2%, 79.2%, 0%, 43.5%)
CIE-LAB	lab(28.82, 50.31, -48.25)
CIE-LCH	lch(28.82, 69.71, 316.20°)
OKLab	oklab(40.91% 0.1116 -0.137)
OKLCH	oklch(40.91% 0.177 309.2)
XYZ	xyz(10.9768, 5.7672, 26.9151)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.60

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#661E90 #48901E

analogous

#2D1E90 #661E90 #901E81

triadic

#661E90 #90661E #1E9066

tetradic

#661E90 #902D1E #48901E #1E8190

square

#661E90 #902D1E #48901E #1E8190

split-complementary

#661E90 #81901E #1E902D

monochromatic

#1E092B #42135D #661E90 #8A29C3 #A74EDA

Accessibility & contrast

On white

9.75

#661E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#661E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661E90

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##661E90	#FFFFFF	#000000	##FFFFFF
##661E90	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004193

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#603A57

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #661e90;
/* rgb */ color: rgb(102, 30, 144);
/* oklch */ color: oklch(40.9% 0.177 309.2);

Tailwind

colors: {
  custom: {
    50: '#9663b1',
    500: '#661e90',
    950: '#000000',
  },
}

SCSS

$custom: #661e90;
$custom-light: #9663b1;
$custom-dark: #000000;

JSON

{
  "hex": "#661e90",
  "rgb": {
    "r": 102,
    "g": 30,
    "b": 144
  },
  "hsl": {
    "h": 277.895,
    "s": 65.517,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40908,
    "c": 0.17666,
    "h": 309.2
  },
  "luminance": 0.05767
}

Semantic roles & 50–950 ramp

primary

#661E90

secondary

#76BD4D

accent

#E83F7E

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0611

muted

#7E7A80

Preview Lab

Preview with #661E90

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

Preview Lab → · Contrast checker → · Palette generator →