#6566EF#6566EF

#6566EF is a mid, highly saturated blue. Relative luminance 0.185; OKLCH L 58.5% C 0.201 H 277.9°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#6566EF
RGB	rgb(101, 102, 239)
HSL	hsl(240, 81%, 67%)
HSV	hsv(240, 58%, 94%)
CMYK	cmyk(57.7%, 57.3%, 0%, 6.3%)
CIE-LAB	lab(50.10, 38.39, -69.37)
CIE-LCH	lch(50.10, 79.29, 298.96°)
OKLab	oklab(58.53% 0.0276 -0.1991)
OKLCH	oklch(58.53% 0.201 277.9)
XYZ	xyz(25.6932, 18.4996, 83.8615)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6566EF #EFEE65

analogous

#65ABEF #6566EF #A965EF

triadic

#6566EF #EF6566 #66EF65

tetradic

#6566EF #EF65AB #EFEE65 #65EFA9

square

#6566EF #EF65AB #EFEE65 #65EFA9

split-complementary

#6566EF #EFA965 #ABEF65

monochromatic

#1416C5 #2E2FE9 #6566EF #9C9DF5 #D4D4FB

Accessibility & contrast

On white

4.47

#6566EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#6566EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6566EF

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6566EF	#FFFFFF	#000000	##000000
##6566EF	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007DF4

Deuteranopia (green-blind)

#0072EC

Tritanopia (blue-blind)

#0087A1

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #6566ef;
/* rgb */ color: rgb(101, 102, 239);
/* oklch */ color: oklch(58.5% 0.201 277.9);

Tailwind

colors: {
  custom: {
    50: '#9d92f5',
    500: '#6566ef',
    950: '#000000',
  },
}

SCSS

$custom: #6566ef;
$custom-light: #9d92f5;
$custom-dark: #000000;

JSON

{
  "hex": "#6566ef",
  "rgb": {
    "r": 101,
    "g": 102,
    "b": 239
  },
  "hsl": {
    "h": 239.565,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.58527,
    "c": 0.20105,
    "h": 277.9
  },
  "luminance": 0.18501
}

Semantic roles & 50–950 ramp

primary

#6566EF

secondary

#EEEEC2

accent

#DC08DE

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#0F0D17

muted

#7F7D85

Preview Lab

Preview with #6566EF

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

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