#6583EF#6583EF

#6583EF is a light, vivid blue. Relative luminance 0.252; OKLCH L 63.9% C 0.165 H 269.6°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#6583EF
RGB	rgb(101, 131, 239)
HSL	hsl(227, 81%, 67%)
HSV	hsv(227, 58%, 94%)
CMYK	cmyk(57.7%, 45.2%, 0%, 6.3%)
CIE-LAB	lab(57.30, 20.89, -57.77)
CIE-LCH	lch(57.30, 61.43, 289.88°)
OKLab	oklab(63.95% -0.0011 -0.1647)
OKLCH	oklch(63.95% 0.165 269.6)
XYZ	xyz(29.0579, 25.2290, 84.9830)
Luminance	0.2523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6583EF #EFD165

analogous

#65C8EF #6583EF #8C65EF

triadic

#6583EF #EF6583 #83EF65

tetradic

#6583EF #EF65C8 #EFD165 #65EF8C

square

#6583EF #EF65C8 #EFD165 #65EF8C

split-complementary

#6583EF #EF8C65 #C8EF65

monochromatic

#143BC5 #2E56E9 #6583EF #9CB0F5 #D4DCFB

Accessibility & contrast

On white

3.47

#6583EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#6583EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6583EF

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6583EF	#FFFFFF	#000000	##000000
##6583EF	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5190F3

Deuteranopia (green-blind)

#3D84ED

Tritanopia (blue-blind)

#009BAD

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #6583ef;
/* rgb */ color: rgb(101, 131, 239);
/* oklch */ color: oklch(63.9% 0.165 269.6);

Tailwind

colors: {
  custom: {
    50: '#9ba6f5',
    500: '#6583ef',
    950: '#000000',
  },
}

SCSS

$custom: #6583ef;
$custom-light: #9ba6f5;
$custom-dark: #000000;

JSON

{
  "hex": "#6583ef",
  "rgb": {
    "r": 101,
    "g": 131,
    "b": 239
  },
  "hsl": {
    "h": 226.957,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.63948,
    "c": 0.16474,
    "h": 269.6
  },
  "luminance": 0.25231
}

Semantic roles & 50–950 ramp

primary

#6583EF

secondary

#EEE4C2

accent

#AF08DE

background

#FAFAFF

surface

#F4F4FE

border

#CECED6

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #6583EF

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

Preview Lab → · Contrast checker → · Palette generator →