#6491CB#6491CB

#6491CB is a light, moderate cyan. Relative luminance 0.273; OKLCH L 64.8% C 0.100 H 255.2°. Best body text is #000000 at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#6491CB
RGB	rgb(100, 145, 203)
HSL	hsl(214, 50%, 59%)
HSV	hsv(214, 51%, 80%)
CMYK	cmyk(50.7%, 28.6%, 0%, 20.4%)
CIE-LAB	lab(59.22, 0.99, -34.61)
CIE-LCH	lch(59.22, 34.63, 271.63°)
OKLab	oklab(64.83% -0.0256 -0.0971)
OKLCH	oklch(64.83% 0.1 255.2)
XYZ	xyz(26.1567, 27.2700, 60.3736)
Luminance	0.2727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6491CB #CB9E64

analogous

#64C5CB #6491CB #6B64CB

triadic

#6491CB #CB6491 #91CB64

tetradic

#6491CB #CB64C5 #CB9E64 #64CB6B

square

#6491CB #CB64C5 #CB9E64 #64CB6B

split-complementary

#6491CB #CB6B64 #C5CB64

monochromatic

#2D5587 #3D71B5 #6491CB #92B2DA #C0D2EA

Accessibility & contrast

On white

3.25

#6491CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.45

#6491CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6491CB

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6491CB	#FFFFFF	#000000	##000000
##6491CB	1.00	3.25	6.45	6.45
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.45	21.00	1.00	1.00
##000000	6.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A94CE

Deuteranopia (green-blind)

#6D8ACA

Tritanopia (blue-blind)

#329EA5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #6491cb;
/* rgb */ color: rgb(100, 145, 203);
/* oklch */ color: oklch(64.8% 0.100 255.2);

Tailwind

colors: {
  custom: {
    50: '#96b1db',
    500: '#6491cb',
    950: '#000000',
  },
}

SCSS

$custom: #6491cb;
$custom-light: #96b1db;
$custom-dark: #000000;

JSON

{
  "hex": "#6491cb",
  "rgb": {
    "r": 100,
    "g": 145,
    "b": 203
  },
  "hsl": {
    "h": 213.786,
    "s": 49.758,
    "l": 59.412
  },
  "oklch": {
    "l": 0.64832,
    "c": 0.1004,
    "h": 255.2
  },
  "luminance": 0.27272
}

Semantic roles & 50–950 ramp

primary

#6491CB

secondary

#D9C8B1

accent

#9D4FD9

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E1015

muted

#7E7F83

Preview Lab

Preview with #6491CB

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

Preview Lab → · Contrast checker → · Palette generator →