#665DB0#665DB0

#665DB0 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.6% C 0.127 H 286.1°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#665DB0
RGB	rgb(102, 93, 176)
HSL	hsl(247, 34%, 53%)
HSV	hsv(247, 47%, 69%)
CMYK	cmyk(42%, 47.2%, 0%, 31%)
CIE-LAB	lab(43.93, 24.66, -43.21)
CIE-LCH	lch(43.93, 49.75, 299.72°)
OKLab	oklab(52.64% 0.0353 -0.1223)
OKLCH	oklch(52.64% 0.127 286.1)
XYZ	xyz(17.2281, 13.7874, 42.8194)
Luminance	0.1379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DB0 #A7B05D

analogous

#5D7DB0 #665DB0 #8F5DB0

triadic

#665DB0 #B0665D #5DB066

tetradic

#665DB0 #B05D7D #A7B05D #5DB08F

square

#665DB0 #B05D7D #A7B05D #5DB08F

split-complementary

#665DB0 #B08F5D #7DB05D

monochromatic

#363063 #4C448C #665DB0 #8D86C4 #B4AFD8

Accessibility & contrast

On white

5.59

#665DB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#665DB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DB0

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DB0	#FFFFFF	#000000	##FFFFFF
##665DB0	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6AB3

Deuteranopia (green-blind)

#3B65AE

Tritanopia (blue-blind)

#506E7E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #665db0;
/* rgb */ color: rgb(102, 93, 176);
/* oklch */ color: oklch(52.6% 0.127 286.1);

Tailwind

colors: {
  custom: {
    50: '#958bc8',
    500: '#665db0',
    950: '#000000',
  },
}

SCSS

$custom: #665db0;
$custom-light: #958bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#665db0",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 176
  },
  "hsl": {
    "h": 246.506,
    "s": 34.44,
    "l": 52.745
  },
  "oklch": {
    "l": 0.52641,
    "c": 0.12729,
    "h": 286.1
  },
  "luminance": 0.13788
}

Semantic roles & 50–950 ramp

primary

#665DB0

secondary

#C2C6A2

accent

#CB5DBF

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665DB0

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

Preview Lab → · Contrast checker → · Palette generator →