#6659CB#6659CB

#6659CB is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.7% C 0.170 H 284.3°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#6659CB
RGB	rgb(102, 89, 203)
HSL	hsl(247, 52%, 57%)
HSV	hsv(247, 56%, 80%)
CMYK	cmyk(49.8%, 56.2%, 0%, 20.4%)
CIE-LAB	lab(44.63, 35.19, -57.77)
CIE-LCH	lch(44.63, 67.65, 301.35°)
OKLab	oklab(53.71% 0.042 -0.1651)
OKLCH	oklch(53.71% 0.17 284.3)
XYZ	xyz(19.8281, 14.2803, 58.1999)
Luminance	0.1428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6659CB #BECB59

analogous

#5985CB #6659CB #9F59CB

triadic

#6659CB #CB6659 #59CB66

tetradic

#6659CB #CB5985 #BECB59 #59CB9F

square

#6659CB #CB5985 #BECB59 #59CB9F

split-complementary

#6659CB #CB9F59 #85CB59

monochromatic

#332881 #4537B0 #6659CB #9188DA #BCB6E8

Accessibility & contrast

On white

5.45

#6659CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#6659CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6659CB

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6659CB	#FFFFFF	#000000	##FFFFFF
##6659CB	1.00	5.45	3.86	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A6DCF

Deuteranopia (green-blind)

#0066C9

Tritanopia (blue-blind)

#417389

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #6659cb;
/* rgb */ color: rgb(102, 89, 203);
/* oklch */ color: oklch(53.7% 0.170 284.3);

Tailwind

colors: {
  custom: {
    50: '#9988dc',
    500: '#6659cb',
    950: '#000000',
  },
}

SCSS

$custom: #6659cb;
$custom-light: #9988dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6659cb",
  "rgb": {
    "r": 102,
    "g": 89,
    "b": 203
  },
  "hsl": {
    "h": 246.842,
    "s": 52.294,
    "l": 57.255
  },
  "oklch": {
    "l": 0.5371,
    "c": 0.17034,
    "h": 284.3
  },
  "luminance": 0.14281
}

Semantic roles & 50–950 ramp

primary

#6659CB

secondary

#D2D7A9

accent

#DC4CCB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #6659CB

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

Preview Lab → · Contrast checker → · Palette generator →