#665EB0#665EB0

#665EB0 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.8% C 0.126 H 285.7°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#665EB0
RGB	rgb(102, 94, 176)
HSL	hsl(246, 34%, 53%)
HSV	hsv(246, 47%, 69%)
CMYK	cmyk(42%, 46.6%, 0%, 31%)
CIE-LAB	lab(44.18, 24.05, -42.80)
CIE-LCH	lch(44.18, 49.09, 299.33°)
OKLab	oklab(52.83% 0.034 -0.1211)
OKLCH	oklch(52.83% 0.126 285.7)
XYZ	xyz(17.3164, 13.9641, 42.8488)
Luminance	0.1396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EB0 #A8B05E

analogous

#5E7FB0 #665EB0 #8F5EB0

triadic

#665EB0 #B0665E #5EB066

tetradic

#665EB0 #B05E7F #A8B05E #5EB08F

square

#665EB0 #B05E7F #A8B05E #5EB08F

split-complementary

#665EB0 #B08F5E #7FB05E

monochromatic

#363163 #4C458C #665EB0 #8D87C4 #B4B0D8

Accessibility & contrast

On white

5.54

#665EB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#665EB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EB0

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EB0	#FFFFFF	#000000	##FFFFFF
##665EB0	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6BB3

Deuteranopia (green-blind)

#3D66AE

Tritanopia (blue-blind)

#506F7E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #665eb0;
/* rgb */ color: rgb(102, 94, 176);
/* oklch */ color: oklch(52.8% 0.126 285.7);

Tailwind

colors: {
  custom: {
    50: '#958bc8',
    500: '#665eb0',
    950: '#000000',
  },
}

SCSS

$custom: #665eb0;
$custom-light: #958bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#665eb0",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 176
  },
  "hsl": {
    "h": 245.854,
    "s": 34.167,
    "l": 52.941
  },
  "oklch": {
    "l": 0.52834,
    "c": 0.12578,
    "h": 285.7
  },
  "luminance": 0.13965
}

Semantic roles & 50–950 ramp

primary

#665EB0

secondary

#C3C7A3

accent

#CA5EC0

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665EB0

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

Preview Lab → · Contrast checker → · Palette generator →