#6591ED#6591ED

#6591ED is a light, vivid blue. Relative luminance 0.291; OKLCH L 66.7% C 0.145 H 263.6°. Best body text is #000000 at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#6591ED
RGB	rgb(101, 145, 237)
HSL	hsl(221, 79%, 66%)
HSV	hsv(221, 57%, 93%)
CMYK	cmyk(57.4%, 38.8%, 0%, 7.1%)
CIE-LAB	lab(60.90, 11.89, -50.93)
CIE-LCH	lch(60.90, 52.30, 283.14°)
OKLab	oklab(66.68% -0.0162 -0.1445)
OKLCH	oklch(66.68% 0.145 263.6)
XYZ	xyz(30.7731, 29.1294, 84.1052)
Luminance	0.2913 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591ED #EDC165

analogous

#65D5ED #6591ED #7D65ED

triadic

#6591ED #ED6591 #91ED65

tetradic

#6591ED #ED65D5 #EDC165 #65ED7D

square

#6591ED #ED65D5 #EDC165 #65ED7D

split-complementary

#6591ED #ED7D65 #D5ED65

monochromatic

#174EC1 #2E6AE7 #6591ED #9CB8F3 #D3DFFA

Accessibility & contrast

On white

3.08

#6591ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.83

#6591ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591ED

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591ED	#FFFFFF	#000000	##000000
##6591ED	1.00	3.08	6.83	6.83
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.83	21.00	1.00	1.00
##000000	6.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A9AF1

Deuteranopia (green-blind)

#588DEB

Tritanopia (blue-blind)

#00A5B4

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #6591ed;
/* rgb */ color: rgb(101, 145, 237);
/* oklch */ color: oklch(66.7% 0.145 263.6);

Tailwind

colors: {
  custom: {
    50: '#9bb0f3',
    500: '#6591ed',
    950: '#000000',
  },
}

SCSS

$custom: #6591ed;
$custom-light: #9bb0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#6591ed",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 237
  },
  "hsl": {
    "h": 220.588,
    "s": 79.07,
    "l": 66.275
  },
  "oklch": {
    "l": 0.66678,
    "c": 0.14543,
    "h": 263.6
  },
  "luminance": 0.29132
}

Semantic roles & 50–950 ramp

primary

#6591ED

secondary

#EDDFC1

accent

#980ADB

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6591ED

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

Preview Lab → · Contrast checker → · Palette generator →