#6399BD#6399BD

#6399BD is a light, moderate cyan. Relative luminance 0.291; OKLCH L 65.9% C 0.079 H 238.8°. Best body text is #000000 at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#6399BD
RGB	rgb(99, 153, 189)
HSL	hsl(204, 41%, 56%)
HSV	hsv(204, 48%, 74%)
CMYK	cmyk(47.6%, 19%, 0%, 25.9%)
CIE-LAB	lab(60.88, -7.96, -24.18)
CIE-LCH	lch(60.88, 25.46, 251.78°)
OKLab	oklab(65.93% -0.0407 -0.0672)
OKLCH	oklch(65.93% 0.079 238.8)
XYZ	xyz(25.7189, 29.1074, 52.3973)
Luminance	0.2911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399BD #BD8763

analogous

#63BDB4 #6399BD #636CBD

triadic

#6399BD #BD6399 #99BD63

tetradic

#6399BD #B463BD #BD8763 #6CBD63

square

#6399BD #B463BD #BD8763 #6CBD63

split-complementary

#6399BD #BD636C #BDB463

monochromatic

#315A74 #437B9F #6399BD #8EB5CF #B9D1E1

Accessibility & contrast

On white

3.08

#6399BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.82

#6399BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6399BD

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399BD	#FFFFFF	#000000	##000000
##6399BD	1.00	3.08	6.82	6.82
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.82	21.00	1.00	1.00
##000000	6.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8998BF

Deuteranopia (green-blind)

#7D8FBC

Tritanopia (blue-blind)

#39A2A5

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #6399bd;
/* rgb */ color: rgb(99, 153, 189);
/* oklch */ color: oklch(65.9% 0.079 238.8);

Tailwind

colors: {
  custom: {
    50: '#94b7d1',
    500: '#6399bd',
    950: '#000000',
  },
}

SCSS

$custom: #6399bd;
$custom-light: #94b7d1;
$custom-dark: #000000;

JSON

{
  "hex": "#6399bd",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 189
  },
  "hsl": {
    "h": 204,
    "s": 40.541,
    "l": 56.471
  },
  "oklch": {
    "l": 0.6593,
    "c": 0.07854,
    "h": 238.8
  },
  "luminance": 0.29109
}

Semantic roles & 50–950 ramp

primary

#6399BD

secondary

#D0BAAB

accent

#8857D0

background

#F9FBFC

surface

#F2F6F9

border

#CCD0D2

text

#0E1114

muted

#7E8082

Preview Lab

Preview with #6399BD

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

Preview Lab → · Contrast checker → · Palette generator →