#6591D3#6591D3

#6591D3 is a light, moderate blue. Relative luminance 0.277; OKLCH L 65.3% C 0.110 H 258.3°. Best body text is #000000 at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#6591D3
RGB	rgb(101, 145, 211)
HSL	hsl(216, 56%, 61%)
HSV	hsv(216, 52%, 83%)
CMYK	cmyk(52.1%, 31.3%, 0%, 17.3%)
CIE-LAB	lab(59.63, 3.67, -38.46)
CIE-LCH	lch(59.63, 38.63, 275.45°)
OKLab	oklab(65.28% -0.0224 -0.1082)
OKLCH	oklch(65.28% 0.11 258.3)
XYZ	xyz(27.2461, 27.7186, 65.5299)
Luminance	0.2772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591D3 #D3A765

analogous

#65C8D3 #6591D3 #7065D3

triadic

#6591D3 #D36591 #91D365

tetradic

#6591D3 #D365C8 #D3A765 #65D370

square

#6591D3 #D365C8 #D3A765 #65D370

split-complementary

#6591D3 #D37065 #C8D365

monochromatic

#2A5493 #386FC3 #6591D3 #95B3E1 #C4D5EE

Accessibility & contrast

On white

3.21

#6591D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.54

#6591D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591D3

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591D3	#FFFFFF	#000000	##000000
##6591D3	1.00	3.21	6.54	6.54
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.54	21.00	1.00	1.00
##000000	6.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7795D6

Deuteranopia (green-blind)

#6A8BD2

Tritanopia (blue-blind)

#2CA0A9

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #6591d3;
/* rgb */ color: rgb(101, 145, 211);
/* oklch */ color: oklch(65.3% 0.110 258.3);

Tailwind

colors: {
  custom: {
    50: '#97b1e1',
    500: '#6591d3',
    950: '#000000',
  },
}

SCSS

$custom: #6591d3;
$custom-light: #97b1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#6591d3",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 211
  },
  "hsl": {
    "h": 216,
    "s": 55.556,
    "l": 61.176
  },
  "oklch": {
    "l": 0.65284,
    "c": 0.11048,
    "h": 258.3
  },
  "luminance": 0.27721
}

Semantic roles & 50–950 ramp

primary

#6591D3

secondary

#DFCEB5

accent

#8322C3

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #6591D3

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

Preview Lab → · Contrast checker → · Palette generator →