#665FBB#665FBB

#665FBB is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.7% C 0.140 H 284.1°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#665FBB
RGB	rgb(102, 95, 187)
HSL	hsl(245, 40%, 55%)
HSV	hsv(245, 49%, 73%)
CMYK	cmyk(45.5%, 49.2%, 0%, 26.7%)
CIE-LAB	lab(45.08, 26.71, -47.80)
CIE-LCH	lch(45.08, 54.75, 299.20°)
OKLab	oklab(53.72% 0.034 -0.1357)
OKLCH	oklch(53.72% 0.14 284.1)
XYZ	xyz(18.5387, 14.5962, 48.8446)
Luminance	0.1460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FBB #B4BB5F

analogous

#5F86BB #665FBB #945FBB

triadic

#665FBB #BB665F #5FBB66

tetradic

#665FBB #BB5F86 #B4BB5F #5FBB94

square

#665FBB #BB5F86 #B4BB5F #5FBB94

split-complementary

#665FBB #BB945F #86BB5F

monochromatic

#343070 #49429B #665FBB #8F8ACD #B8B5E0

Accessibility & contrast

On white

5.36

#665FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#665FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FBB

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FBB	#FFFFFF	#000000	##FFFFFF
##665FBB	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBE

Deuteranopia (green-blind)

#3468B9

Tritanopia (blue-blind)

#4A7284

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #665fbb;
/* rgb */ color: rgb(102, 95, 187);
/* oklch */ color: oklch(53.7% 0.140 284.1);

Tailwind

colors: {
  custom: {
    50: '#978cd0',
    500: '#665fbb',
    950: '#000000',
  },
}

SCSS

$custom: #665fbb;
$custom-light: #978cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#665fbb",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 187
  },
  "hsl": {
    "h": 244.565,
    "s": 40.351,
    "l": 55.294
  },
  "oklch": {
    "l": 0.53715,
    "c": 0.13995,
    "h": 284.1
  },
  "luminance": 0.14597
}

Semantic roles & 50–950 ramp

primary

#665FBB

secondary

#CBCEA8

accent

#D058C7

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C14

muted

#7E7D82

Preview Lab

Preview with #665FBB

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

Preview Lab → · Contrast checker → · Palette generator →