#6591B3#6591B3

#6591B3 is a light, moderate cyan. Relative luminance 0.263; OKLCH L 63.8% C 0.070 H 242.4°. Best body text is #000000 at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#6591B3
RGB	rgb(101, 145, 179)
HSL	hsl(206, 34%, 55%)
HSV	hsv(206, 44%, 70%)
CMYK	cmyk(43.6%, 19%, 0%, 29.8%)
CIE-LAB	lab(58.29, -5.85, -22.48)
CIE-LCH	lch(58.29, 23.23, 255.42°)
OKLab	oklab(63.79% -0.0326 -0.0623)
OKLCH	oklch(63.79% 0.07 242.4)
XYZ	xyz(23.6262, 26.2706, 46.4649)
Luminance	0.2627 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6591B3 #B38765

analogous

#65B3AE #6591B3 #656AB3

triadic

#6591B3 #B36591 #91B365

tetradic

#6591B3 #AE65B3 #B38765 #6AB365

square

#6591B3 #AE65B3 #B38765 #6AB365

split-complementary

#6591B3 #B3656A #B3AE65

monochromatic

#34526A #487293 #6591B3 #8EAEC7 #B7CCDB

Accessibility & contrast

On white

3.36

#6591B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.25

#6591B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6591B3

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6591B3	#FFFFFF	#000000	##000000
##6591B3	1.00	3.36	6.25	6.25
#FFFFFF	3.36	1.00	21.00	21.00
#000000	6.25	21.00	1.00	1.00
##000000	6.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8391B5

Deuteranopia (green-blind)

#7889B2

Tritanopia (blue-blind)

#46999C

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #6591b3;
/* rgb */ color: rgb(101, 145, 179);
/* oklch */ color: oklch(63.8% 0.070 242.4);

Tailwind

colors: {
  custom: {
    50: '#94b1c9',
    500: '#6591b3',
    950: '#000000',
  },
}

SCSS

$custom: #6591b3;
$custom-light: #94b1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#6591b3",
  "rgb": {
    "r": 101,
    "g": 145,
    "b": 179
  },
  "hsl": {
    "h": 206.154,
    "s": 33.913,
    "l": 54.902
  },
  "oklch": {
    "l": 0.6379,
    "c": 0.07032,
    "h": 242.4
  },
  "luminance": 0.26272
}

Semantic roles & 50–950 ramp

primary

#6591B3

secondary

#CAB8A9

accent

#8D5ECA

background

#F9FAFC

surface

#F2F5F8

border

#CCCFD1

text

#0D1013

muted

#7E7F82

Preview Lab

Preview with #6591B3

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

Preview Lab → · Contrast checker → · Palette generator →