#6591E1#6591E1

#6591E1 is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.0% C 0.129 H 261.6°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#6591E1
RGB	rgb(101, 145, 225)
HSL	hsl(219, 67%, 64%)
HSV	hsv(219, 55%, 88%)
CMYK	cmyk(55.1%, 35.6%, 0%, 11.8%)
CIE-LAB	lab(60.29, 8.05, -45.23)
CIE-LCH	lch(60.29, 45.94, 280.10°)
OKLab	oklab(66.02% -0.0188 -0.1279)
OKLCH	oklch(66.02% 0.129 261.6)
XYZ	xyz(29.0782, 28.4515, 75.1789)
Luminance	0.2845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591E1 #E1B565

analogous

#65CFE1 #6591E1 #7765E1

triadic

#6591E1 #E16591 #91E165

tetradic

#6591E1 #E165CF #E1B565 #65E177

square

#6591E1 #E165CF #E1B565 #65E177

split-complementary

#6591E1 #E17765 #CFE165

monochromatic

#2152AA #326CD7 #6591E1 #98B6EB #CBDAF5

Accessibility & contrast

On white

3.14

#6591E1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#6591E1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591E1

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591E1	#FFFFFF	#000000	##000000
##6591E1	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7198E4

Deuteranopia (green-blind)

#618CDF

Tritanopia (blue-blind)

#14A3AE

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #6591e1;
/* rgb */ color: rgb(101, 145, 225);
/* oklch */ color: oklch(66.0% 0.129 261.6);

Tailwind

colors: {
  custom: {
    50: '#99b0eb',
    500: '#6591e1',
    950: '#000000',
  },
}

SCSS

$custom: #6591e1;
$custom-light: #99b0eb;
$custom-dark: #000000;

JSON

{
  "hex": "#6591e1",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 225
  },
  "hsl": {
    "h": 218.71,
    "s": 67.391,
    "l": 63.922
  },
  "oklch": {
    "l": 0.66015,
    "c": 0.12926,
    "h": 261.6
  },
  "luminance": 0.28454
}

Semantic roles & 50–950 ramp

primary

#6591E1

secondary

#E7D7BB

accent

#8E16CF

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0F1016

muted

#7E7F84

Preview Lab

Preview with #6591E1

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

Preview Lab → · Contrast checker → · Palette generator →