#6591E4#6591E4

#6591E4 is a light, vivid blue. Relative luminance 0.286; OKLCH L 66.2% C 0.133 H 262.2°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#6591E4
RGB	rgb(101, 145, 228)
HSL	hsl(219, 70%, 65%)
HSV	hsv(219, 56%, 89%)
CMYK	cmyk(55.7%, 36.4%, 0%, 10.6%)
CIE-LAB	lab(60.44, 9.01, -46.66)
CIE-LCH	lch(60.44, 47.52, 280.92°)
OKLab	oklab(66.18% -0.0181 -0.1321)
OKLCH	oklch(66.18% 0.133 262.2)
XYZ	xyz(29.4910, 28.6166, 77.3532)
Luminance	0.2862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591E4 #E4B865

analogous

#65D0E4 #6591E4 #7965E4

triadic

#6591E4 #E46591 #91E465

tetradic

#6591E4 #E465D0 #E4B865 #65E479

square

#6591E4 #E465D0 #E4B865 #65E479

split-complementary

#6591E4 #E47965 #D0E465

monochromatic

#1F51B0 #316CDB #6591E4 #99B6ED #CDDBF6

Accessibility & contrast

On white

3.12

#6591E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#6591E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591E4

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591E4	#FFFFFF	#000000	##000000
##6591E4	1.00	3.12	6.72	6.72
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F98E7

Deuteranopia (green-blind)

#5F8CE2

Tritanopia (blue-blind)

#0AA3B0

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #6591e4;
/* rgb */ color: rgb(101, 145, 228);
/* oklch */ color: oklch(66.2% 0.133 262.2);

Tailwind

colors: {
  custom: {
    50: '#99b0ed',
    500: '#6591e4',
    950: '#000000',
  },
}

SCSS

$custom: #6591e4;
$custom-light: #99b0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#6591e4",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 228
  },
  "hsl": {
    "h": 219.213,
    "s": 70.166,
    "l": 64.51
  },
  "oklch": {
    "l": 0.66178,
    "c": 0.1333,
    "h": 262.2
  },
  "luminance": 0.28619
}

Semantic roles & 50–950 ramp

primary

#6591E4

secondary

#E8D9BC

accent

#9013D2

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #6591E4

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

Preview Lab → · Contrast checker → · Palette generator →