#665DBC#665DBC

#665DBC is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.4% C 0.144 H 284.7°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#665DBC
RGB	rgb(102, 93, 188)
HSL	hsl(246, 41%, 55%)
HSV	hsv(246, 51%, 74%)
CMYK	cmyk(45.7%, 50.5%, 0%, 26.3%)
CIE-LAB	lab(44.64, 28.24, -49.08)
CIE-LCH	lch(44.64, 56.63, 299.91°)
OKLab	oklab(53.41% 0.0366 -0.1395)
OKLCH	oklch(53.41% 0.144 284.7)
XYZ	xyz(18.4683, 14.2835, 49.3511)
Luminance	0.1428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DBC #B3BC5D

analogous

#5D84BC #665DBC #955DBC

triadic

#665DBC #BC665D #5DBC66

tetradic

#665DBC #BC5D84 #B3BC5D #5DBC95

square

#665DBC #BC5D84 #B3BC5D #5DBC95

split-complementary

#665DBC #BC955D #84BC5D

monochromatic

#352E70 #49409B #665DBC #8F88CE #B8B4E0

Accessibility & contrast

On white

5.44

#665DBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#665DBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DBC

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DBC	#FFFFFF	#000000	##FFFFFF
##665DBC	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326CBF

Deuteranopia (green-blind)

#2F67BA

Tritanopia (blue-blind)

#4A7184

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665dbc;
/* rgb */ color: rgb(102, 93, 188);
/* oklch */ color: oklch(53.4% 0.144 284.7);

Tailwind

colors: {
  custom: {
    50: '#978bd1',
    500: '#665dbc',
    950: '#000000',
  },
}

SCSS

$custom: #665dbc;
$custom-light: #978bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#665dbc",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 188
  },
  "hsl": {
    "h": 245.684,
    "s": 41.485,
    "l": 55.098
  },
  "oklch": {
    "l": 0.53405,
    "c": 0.14424,
    "h": 284.7
  },
  "luminance": 0.14284
}

Semantic roles & 50–950 ramp

primary

#665DBC

secondary

#CBCEA6

accent

#D156C6

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #665DBC

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

Preview Lab → · Contrast checker → · Palette generator →