#6599BF#6599BF

#6599BF is a light, moderate cyan. Relative luminance 0.293; OKLCH L 66.1% C 0.079 H 241.2°. Best body text is #000000 at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#6599BF
RGB	rgb(101, 153, 191)
HSL	hsl(205, 41%, 57%)
HSV	hsv(205, 47%, 75%)
CMYK	cmyk(47.1%, 19.9%, 0%, 25.1%)
CIE-LAB	lab(61.05, -6.89, -25.03)
CIE-LCH	lch(61.05, 25.96, 254.60°)
OKLab	oklab(66.12% -0.0383 -0.0695)
OKLCH	oklch(66.12% 0.079 241.2)
XYZ	xyz(26.1587, 29.3089, 53.5589)
Luminance	0.2931 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599BF #BF8B65

analogous

#65BFB8 #6599BF #656CBF

triadic

#6599BF #BF6599 #99BF65

tetradic

#6599BF #B865BF #BF8B65 #6CBF65

square

#6599BF #B865BF #BF8B65 #6CBF65

split-complementary

#6599BF #BF656C #BFB865

monochromatic

#325A78 #447BA3 #6599BF #90B6D1 #BBD2E3

Accessibility & contrast

On white

3.06

#6599BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.86

#6599BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6599BF

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599BF	#FFFFFF	#000000	##000000
##6599BF	1.00	3.06	6.86	6.86
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.86	21.00	1.00	1.00
##000000	6.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8999C1

Deuteranopia (green-blind)

#7C8FBE

Tritanopia (blue-blind)

#3CA2A6

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #6599bf;
/* rgb */ color: rgb(101, 153, 191);
/* oklch */ color: oklch(66.1% 0.079 241.2);

Tailwind

colors: {
  custom: {
    50: '#95b7d2',
    500: '#6599bf',
    950: '#000000',
  },
}

SCSS

$custom: #6599bf;
$custom-light: #95b7d2;
$custom-dark: #000000;

JSON

{
  "hex": "#6599bf",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 191
  },
  "hsl": {
    "h": 205.333,
    "s": 41.284,
    "l": 57.255
  },
  "oklch": {
    "l": 0.66122,
    "c": 0.07938,
    "h": 241.2
  },
  "luminance": 0.29311
}

Semantic roles & 50–950 ramp

primary

#6599BF

secondary

#D2BDAE

accent

#8A57D1

background

#F9FBFC

surface

#F2F6F9

border

#CCD0D2

text

#0E1114

muted

#7E8082

Preview Lab

Preview with #6599BF

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

Preview Lab → · Contrast checker → · Palette generator →