#6590DD#6590DD

#6590DD is a light, vivid blue. Relative luminance 0.279; OKLCH L 65.6% C 0.125 H 261.4°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#6590DD
RGB	rgb(101, 144, 221)
HSL	hsl(219, 64%, 63%)
HSV	hsv(219, 54%, 87%)
CMYK	cmyk(54.3%, 34.8%, 0%, 13.3%)
CIE-LAB	lab(59.83, 7.38, -43.74)
CIE-LCH	lch(59.83, 44.36, 279.57°)
OKLab	oklab(65.59% -0.0187 -0.1235)
OKLCH	oklch(65.59% 0.125 261.4)
XYZ	xyz(28.3868, 27.9315, 72.2880)
Luminance	0.2793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6590DD #DDB265

analogous

#65CCDD #6590DD #7665DD

triadic

#6590DD #DD6590 #90DD65

tetradic

#6590DD #DD65CC #DDB265 #65DD76

square

#6590DD #DD65CC #DDB265 #65DD76

split-complementary

#6590DD #DD7665 #CCDD65

monochromatic

#2452A4 #336CD2 #6590DD #97B4E8 #C9D8F3

Accessibility & contrast

On white

3.19

#6590DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#6590DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6590DD

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6590DD	#FFFFFF	#000000	##000000
##6590DD	1.00	3.19	6.59	6.59
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.59	21.00	1.00	1.00
##000000	6.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7196E0

Deuteranopia (green-blind)

#628BDB

Tritanopia (blue-blind)

#1EA1AC

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #6590dd;
/* rgb */ color: rgb(101, 144, 221);
/* oklch */ color: oklch(65.6% 0.125 261.4);

Tailwind

colors: {
  custom: {
    50: '#99b0e8',
    500: '#6590dd',
    950: '#000000',
  },
}

SCSS

$custom: #6590dd;
$custom-light: #99b0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6590dd",
  "rgb": {
    "r": 101,
    "g": 144,
    "b": 221
  },
  "hsl": {
    "h": 218.5,
    "s": 63.83,
    "l": 63.137
  },
  "oklch": {
    "l": 0.65589,
    "c": 0.12496,
    "h": 261.4
  },
  "luminance": 0.27934
}

Semantic roles & 50–950 ramp

primary

#6590DD

secondary

#E4D5B9

accent

#8C1ACC

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #6590DD

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

Preview Lab → · Contrast checker → · Palette generator →