#6591EE#6591EE

#6591EE is a light, vivid blue. Relative luminance 0.292; OKLCH L 66.7% C 0.147 H 263.8°. Best body text is #000000 at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#6591EE
RGB	rgb(101, 145, 238)
HSL	hsl(221, 80%, 66%)
HSV	hsv(221, 58%, 93%)
CMYK	cmyk(57.6%, 39.1%, 0%, 6.7%)
CIE-LAB	lab(60.95, 12.21, -51.40)
CIE-LCH	lch(60.95, 52.83, 283.36°)
OKLab	oklab(66.73% -0.0159 -0.1459)
OKLCH	oklch(66.73% 0.147 263.8)
XYZ	xyz(30.9196, 29.1880, 84.8768)
Luminance	0.2919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591EE #EEC265

analogous

#65D6EE #6591EE #7E65EE

triadic

#6591EE #EE6591 #91EE65

tetradic

#6591EE #EE65D6 #EEC265 #65EE7E

square

#6591EE #EE65D6 #EEC265 #65EE7E

split-complementary

#6591EE #EE7E65 #D6EE65

monochromatic

#164DC3 #2E6AE8 #6591EE #9CB8F4 #D3E0FA

Accessibility & contrast

On white

3.07

#6591EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.84

#6591EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591EE

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591EE	#FFFFFF	#000000	##000000
##6591EE	1.00	3.07	6.84	6.84
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.84	21.00	1.00	1.00
##000000	6.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A9AF2

Deuteranopia (green-blind)

#588DEC

Tritanopia (blue-blind)

#00A6B4

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #6591ee;
/* rgb */ color: rgb(101, 145, 238);
/* oklch */ color: oklch(66.7% 0.147 263.8);

Tailwind

colors: {
  custom: {
    50: '#9bb0f4',
    500: '#6591ee',
    950: '#000000',
  },
}

SCSS

$custom: #6591ee;
$custom-light: #9bb0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#6591ee",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 238
  },
  "hsl": {
    "h": 220.73,
    "s": 80.117,
    "l": 66.471
  },
  "oklch": {
    "l": 0.66734,
    "c": 0.14678,
    "h": 263.8
  },
  "luminance": 0.29191
}

Semantic roles & 50–950 ramp

primary

#6591EE

secondary

#EEDFC1

accent

#9909DC

background

#FAFAFE

surface

#F3F4FD

border

#CDCED5

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #6591EE

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

Preview Lab → · Contrast checker → · Palette generator →