#6399A4#6399A4

#6399A4 is a light, muted cyan. Relative luminance 0.281; OKLCH L 64.9% C 0.059 H 211.9°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#6399A4
RGB	rgb(99, 153, 164)
HSL	hsl(190, 26%, 52%)
HSV	hsv(190, 40%, 64%)
CMYK	cmyk(39.6%, 6.7%, 0%, 35.7%)
CIE-LAB	lab(59.99, -14.91, -11.40)
CIE-LCH	lch(59.99, 18.77, 217.40°)
OKLab	oklab(64.93% -0.0503 -0.0313)
OKLCH	oklch(64.93% 0.059 211.9)
XYZ	xyz(23.2353, 28.1139, 39.3169)
Luminance	0.2812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6399A4 #A46E63

analogous

#63A48F #6399A4 #6379A4

triadic

#6399A4 #A46399 #99A463

tetradic

#6399A4 #8F63A4 #A46E63 #79A463

square

#6399A4 #8F63A4 #A46E63 #79A463

split-complementary

#6399A4 #A46379 #A48F63

monochromatic

#345359 #4A767F #6399A4 #8AB2BB #B0CCD1

Accessibility & contrast

On white

3.17

#6399A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#6399A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6399A4

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6399A4	#FFFFFF	#000000	##000000
##6399A4	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9095A5

Deuteranopia (green-blind)

#858DA4

Tritanopia (blue-blind)

#499E9C

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #6399a4;
/* rgb */ color: rgb(99, 153, 164);
/* oklch */ color: oklch(64.9% 0.059 211.9);

Tailwind

colors: {
  custom: {
    50: '#92b7bf',
    500: '#6399a4',
    950: '#000000',
  },
}

SCSS

$custom: #6399a4;
$custom-light: #92b7bf;
$custom-dark: #000000;

JSON

{
  "hex": "#6399a4",
  "rgb": {
    "r": 99,
    "g": 153,
    "b": 164
  },
  "hsl": {
    "h": 190.154,
    "s": 26.316,
    "l": 51.569
  },
  "oklch": {
    "l": 0.64934,
    "c": 0.05927,
    "h": 211.9
  },
  "luminance": 0.28115
}

Semantic roles & 50–950 ramp

primary

#6399A4

secondary

#C0A8A3

accent

#7565C3

background

#F9FBFB

surface

#F1F6F6

border

#CBD0D0

text

#0D1112

muted

#7E8081

Preview Lab

Preview with #6399A4

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

Preview Lab → · Contrast checker → · Palette generator →