#6591BB#6591BB

#6591BB is a light, moderate cyan. Relative luminance 0.266; OKLCH L 64.1% C 0.080 H 248.0°. Best body text is #000000 at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#6591BB
RGB	rgb(101, 145, 187)
HSL	hsl(209, 39%, 56%)
HSV	hsv(209, 46%, 73%)
CMYK	cmyk(46%, 22.5%, 0%, 26.7%)
CIE-LAB	lab(58.61, -3.55, -26.54)
CIE-LCH	lch(58.61, 26.78, 262.39°)
OKLab	oklab(64.14% -0.0298 -0.0739)
OKLCH	oklch(64.14% 0.08 248)
XYZ	xyz(24.4588, 26.6037, 50.8503)
Luminance	0.2661 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591BB #BB8F65

analogous

#65BBBA #6591BB #6566BB

triadic

#6591BB #BB6591 #91BB65

tetradic

#6591BB #BA65BB #BB8F65 #66BB65

square

#6591BB #BA65BB #BB8F65 #66BB65

split-complementary

#6591BB #BB6566 #BBBA65

monochromatic

#335473 #45729D #6591BB #8FAFCE #BACEE0

Accessibility & contrast

On white

3.32

#6591BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.32

#6591BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591BB

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591BB	#FFFFFF	#000000	##000000
##6591BB	1.00	3.32	6.32	6.32
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.32	21.00	1.00	1.00
##000000	6.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8092BD

Deuteranopia (green-blind)

#7589BA

Tritanopia (blue-blind)

#419B9F

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #6591bb;
/* rgb */ color: rgb(101, 145, 187);
/* oklch */ color: oklch(64.1% 0.080 248.0);

Tailwind

colors: {
  custom: {
    50: '#95b1cf',
    500: '#6591bb',
    950: '#000000',
  },
}

SCSS

$custom: #6591bb;
$custom-light: #95b1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#6591bb",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 187
  },
  "hsl": {
    "h": 209.302,
    "s": 38.739,
    "l": 56.471
  },
  "oklch": {
    "l": 0.64139,
    "c": 0.07965,
    "h": 248
  },
  "luminance": 0.26605
}

Semantic roles & 50–950 ramp

primary

#6591BB

secondary

#D0BDAC

accent

#9359CF

background

#F9FAFC

surface

#F2F4F9

border

#CCCED2

text

#0E1014

muted

#7E7F82

Preview Lab

Preview with #6591BB

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

Preview Lab → · Contrast checker → · Palette generator →