#509BBB#509BBB

#509BBB is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.4% C 0.088 H 228.2°. Best body text is #000000 at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#509BBB
RGB	rgb(80, 155, 187)
HSL	hsl(198, 44%, 52%)
HSV	hsv(198, 57%, 73%)
CMYK	cmyk(57.2%, 17.1%, 0%, 26.7%)
CIE-LAB	lab(60.55, -13.93, -23.64)
CIE-LCH	lch(60.55, 27.43, 239.49°)
OKLab	oklab(65.41% -0.0589 -0.0658)
OKLCH	oklch(65.41% 0.088 228.2)
XYZ	xyz(23.9958, 28.7338, 51.2857)
Luminance	0.2874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#509BBB #BB7050

analogous

#50BBA6 #509BBB #5065BB

triadic

#509BBB #BB509B #9BBB50

tetradic

#509BBB #A650BB #BB7050 #65BB50

square

#509BBB #A650BB #BB7050 #65BB50

split-complementary

#509BBB #BB5065 #BBA650

monochromatic

#285568 #3A7994 #509BBB #7CB4CC #A8CDDD

Accessibility & contrast

On white

3.11

#509BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.75

#509BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #509BBB

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##509BBB	#FFFFFF	#000000	##000000
##509BBB	1.00	3.11	6.75	6.75
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.75	21.00	1.00	1.00
##000000	6.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A98BD

Deuteranopia (green-blind)

#7B8DBB

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #509bbb;
/* rgb */ color: rgb(80, 155, 187);
/* oklch */ color: oklch(65.4% 0.088 228.2);

Tailwind

colors: {
  custom: {
    50: '#8ab8cf',
    500: '#509bbb',
    950: '#000000',
  },
}

SCSS

$custom: #509bbb;
$custom-light: #8ab8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#509bbb",
  "rgb": {
    "r": 80,
    "g": 155,
    "b": 187
  },
  "hsl": {
    "h": 197.944,
    "s": 44.033,
    "l": 52.353
  },
  "oklch": {
    "l": 0.65414,
    "c": 0.0883,
    "h": 228.2
  },
  "luminance": 0.28736
}

Semantic roles & 50–950 ramp

primary

#509BBB

secondary

#CBAA9C

accent

#7A54D4

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #509BBB

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

Preview Lab → · Contrast checker → · Palette generator →