#3FB9DA#3FB9DA

#3FB9DA is a light, moderate cyan. Relative luminance 0.408; OKLCH L 73.3% C 0.115 H 219.7°. Best body text is #000000 at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#3FB9DA
RGB	rgb(63, 185, 218)
HSL	hsl(193, 68%, 55%)
HSV	hsv(193, 71%, 85%)
CMYK	cmyk(71.1%, 15.1%, 0%, 14.5%)
CIE-LAB	lab(70.04, -22.87, -26.30)
CIE-LCH	lch(70.04, 34.85, 228.98°)
OKLab	oklab(73.25% -0.0883 -0.0734)
OKLCH	oklch(73.25% 0.115 219.7)
XYZ	xyz(32.0485, 40.8129, 72.5047)
Luminance	0.4082 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB9DA #DA603F

analogous

#3FDAAD #3FB9DA #3F6CDA

triadic

#3FB9DA #DA3FB9 #B9DA3F

tetradic

#3FB9DA #AD3FDA #DA603F #6CDA3F

square

#3FB9DA #AD3FDA #DA603F #6CDA3F

split-complementary

#3FB9DA #DA3F6C #DAAD3F

monochromatic

#1A6E85 #2499B8 #3FB9DA #72CCE4 #A6DEEE

Accessibility & contrast

On white

2.29

#3FB9DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.16

#3FB9DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB9DA

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB9DA	#FFFFFF	#000000	##000000
##3FB9DA	1.00	2.29	9.16	9.16
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.16	21.00	1.00	1.00
##000000	9.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B4DC

Deuteranopia (green-blind)

#8FA4DA

Tritanopia (blue-blind)

#00C4C3

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #3fb9da;
/* rgb */ color: rgb(63, 185, 218);
/* oklch */ color: oklch(73.3% 0.115 219.7);

Tailwind

colors: {
  custom: {
    50: '#88cee5',
    500: '#3fb9da',
    950: '#000000',
  },
}

SCSS

$custom: #3fb9da;
$custom-light: #88cee5;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb9da",
  "rgb": {
    "r": 63,
    "g": 185,
    "b": 218
  },
  "hsl": {
    "h": 192.774,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.73253,
    "c": 0.11487,
    "h": 219.7
  },
  "luminance": 0.40817
}

Semantic roles & 50–950 ramp

primary

#3FB9DA

secondary

#DBA89A

accent

#623DEB

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1315

muted

#7E8284

Preview Lab

Preview with #3FB9DA

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

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