#665EC9#665EC9

#665EC9 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.5% C 0.161 H 283.0°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#665EC9
RGB	rgb(102, 94, 201)
HSL	hsl(244, 50%, 58%)
HSV	hsv(244, 53%, 79%)
CMYK	cmyk(49.3%, 53.2%, 0%, 21.2%)
CIE-LAB	lab(45.70, 31.57, -54.90)
CIE-LCH	lch(45.70, 63.33, 299.89°)
OKLab	oklab(54.46% 0.0363 -0.1566)
OKLCH	oklch(54.46% 0.161 283)
XYZ	xyz(20.0216, 15.0462, 57.0962)
Luminance	0.1505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EC9 #C1C95E

analogous

#5E8BC9 #665EC9 #9B5EC9

triadic

#665EC9 #C9665E #5EC966

tetradic

#665EC9 #C95E8B #C1C95E #5EC99B

square

#665EC9 #C95E8B #C1C95E #5EC99B

split-complementary

#665EC9 #C99B5E #8BC95E

monochromatic

#322B81 #433BAF #665EC9 #928CD8 #BDBAE8

Accessibility & contrast

On white

5.24

#665EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#665EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EC9

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EC9	#FFFFFF	#000000	##FFFFFF
##665EC9	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2570CD

Deuteranopia (green-blind)

#1D69C7

Tritanopia (blue-blind)

#42768A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665ec9;
/* rgb */ color: rgb(102, 94, 201);
/* oklch */ color: oklch(54.5% 0.161 283.0);

Tailwind

colors: {
  custom: {
    50: '#988cda',
    500: '#665ec9',
    950: '#000000',
  },
}

SCSS

$custom: #665ec9;
$custom-light: #988cda;
$custom-dark: #000000;

JSON

{
  "hex": "#665ec9",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 201
  },
  "hsl": {
    "h": 244.486,
    "s": 49.767,
    "l": 57.843
  },
  "oklch": {
    "l": 0.5446,
    "c": 0.16078,
    "h": 283
  },
  "luminance": 0.15047
}

Semantic roles & 50–950 ramp

primary

#665EC9

secondary

#D4D7AC

accent

#D94FCF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #665EC9

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

Preview Lab → · Contrast checker → · Palette generator →