#6583EE#6583EE

#6583EE is a light, vivid blue. Relative luminance 0.252; OKLCH L 63.9% C 0.163 H 269.6°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#6583EE
RGB	rgb(101, 131, 238)
HSL	hsl(227, 80%, 66%)
HSV	hsv(227, 58%, 93%)
CMYK	cmyk(57.6%, 45%, 0%, 6.7%)
CIE-LAB	lab(57.24, 20.57, -57.30)
CIE-LCH	lch(57.24, 60.88, 289.74°)
OKLab	oklab(63.89% -0.0013 -0.1634)
OKLCH	oklch(63.89% 0.163 269.6)
XYZ	xyz(28.9106, 25.1701, 84.2072)
Luminance	0.2517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583EE #EED065

analogous

#65C8EE #6583EE #8C65EE

triadic

#6583EE #EE6583 #83EE65

tetradic

#6583EE #EE65C8 #EED065 #65EE8C

square

#6583EE #EE65C8 #EED065 #65EE8C

split-complementary

#6583EE #EE8C65 #C8EE65

monochromatic

#163CC3 #2E57E8 #6583EE #9CAFF4 #D3DCFA

Accessibility & contrast

On white

3.48

#6583EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#6583EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583EE

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583EE	#FFFFFF	#000000	##000000
##6583EE	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5290F2

Deuteranopia (green-blind)

#3E84EC

Tritanopia (blue-blind)

#009BAD

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #6583ee;
/* rgb */ color: rgb(101, 131, 238);
/* oklch */ color: oklch(63.9% 0.163 269.6);

Tailwind

colors: {
  custom: {
    50: '#9ba6f4',
    500: '#6583ee',
    950: '#000000',
  },
}

SCSS

$custom: #6583ee;
$custom-light: #9ba6f4;
$custom-dark: #000000;

JSON

{
  "hex": "#6583ee",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 238
  },
  "hsl": {
    "h": 226.861,
    "s": 80.117,
    "l": 66.471
  },
  "oklch": {
    "l": 0.63886,
    "c": 0.16338,
    "h": 269.6
  },
  "luminance": 0.25172
}

Semantic roles & 50–950 ramp

primary

#6583EE

secondary

#EEE4C1

accent

#AE09DC

background

#FAFAFE

surface

#F4F4FD

border

#CECED5

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #6583EE

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

Preview Lab → · Contrast checker → · Palette generator →