#3FB9D8#3FB9D8

#3FB9D8 is a light, moderate cyan. Relative luminance 0.407; OKLCH L 73.2% C 0.114 H 218.4°. Best body text is #000000 at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#3FB9D8
RGB	rgb(63, 185, 216)
HSL	hsl(192, 66%, 55%)
HSV	hsv(192, 71%, 85%)
CMYK	cmyk(70.8%, 14.4%, 0%, 15.3%)
CIE-LAB	lab(69.97, -23.50, -25.32)
CIE-LCH	lch(69.97, 34.54, 227.13°)
OKLab	oklab(73.17% -0.0891 -0.0706)
OKLCH	oklch(73.17% 0.114 218.4)
XYZ	xyz(31.7884, 40.7089, 71.1347)
Luminance	0.4071 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB9D8 #D85E3F

analogous

#3FD8AB #3FB9D8 #3F6CD8

triadic

#3FB9D8 #D83FB9 #B9D83F

tetradic

#3FB9D8 #AB3FD8 #D85E3F #6CD83F

square

#3FB9D8 #AB3FD8 #D85E3F #6CD83F

split-complementary

#3FB9D8 #D83F6C #D8AB3F

monochromatic

#1A6D82 #2598B5 #3FB9D8 #72CCE2 #A5DEED

Accessibility & contrast

On white

2.30

#3FB9D8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.14

#3FB9D8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB9D8

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB9D8	#FFFFFF	#000000	##000000
##3FB9D8	1.00	2.30	9.14	9.14
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.14	21.00	1.00	1.00
##000000	9.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B4DA

Deuteranopia (green-blind)

#90A4D8

Tritanopia (blue-blind)

#00C4C3

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #3fb9d8;
/* rgb */ color: rgb(63, 185, 216);
/* oklch */ color: oklch(73.2% 0.114 218.4);

Tailwind

colors: {
  custom: {
    50: '#88cee4',
    500: '#3fb9d8',
    950: '#000000',
  },
}

SCSS

$custom: #3fb9d8;
$custom-light: #88cee4;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb9d8",
  "rgb": {
    "r": 63,
    "g": 185,
    "b": 216
  },
  "hsl": {
    "h": 192.157,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.7317,
    "c": 0.1137,
    "h": 218.4
  },
  "luminance": 0.40713
}

Semantic roles & 50–950 ramp

primary

#3FB9D8

secondary

#DAA699

accent

#613FE9

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #3FB9D8

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

Preview Lab → · Contrast checker → · Palette generator →