#3FB5D9#3FB5D9

#3FB5D9 is a light, moderate cyan. Relative luminance 0.391; OKLCH L 72.3% C 0.115 H 222.3°. Best body text is #000000 at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#3FB5D9
RGB	rgb(63, 181, 217)
HSL	hsl(194, 67%, 55%)
HSV	hsv(194, 71%, 85%)
CMYK	cmyk(71%, 16.6%, 0%, 14.9%)
CIE-LAB	lab(68.83, -21.13, -27.61)
CIE-LCH	lch(68.83, 34.77, 232.57°)
OKLab	oklab(72.27% -0.0848 -0.0772)
OKLCH	oklch(72.27% 0.115 222.3)
XYZ	xyz(31.0930, 39.1107, 71.5426)
Luminance	0.3911 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB5D9 #D9633F

analogous

#3FD9B0 #3FB5D9 #3F68D9

triadic

#3FB5D9 #D93FB5 #B5D93F

tetradic

#3FB5D9 #B03FD9 #D9633F #68D93F

square

#3FB5D9 #B03FD9 #D9633F #68D93F

split-complementary

#3FB5D9 #D93F68 #D9B03F

monochromatic

#1A6B84 #2494B7 #3FB5D9 #72C9E3 #A5DCED

Accessibility & contrast

On white

2.38

#3FB5D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.82

#3FB5D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB5D9

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB5D9	#FFFFFF	#000000	##000000
##3FB5D9	1.00	2.38	8.82	8.82
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.82	21.00	1.00	1.00
##000000	8.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B1DB

Deuteranopia (green-blind)

#8BA1D9

Tritanopia (blue-blind)

#00C0C1

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #3fb5d9;
/* rgb */ color: rgb(63, 181, 217);
/* oklch */ color: oklch(72.3% 0.115 222.3);

Tailwind

colors: {
  custom: {
    50: '#88cbe4',
    500: '#3fb5d9',
    950: '#000000',
  },
}

SCSS

$custom: #3fb5d9;
$custom-light: #88cbe4;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb5d9",
  "rgb": {
    "r": 63,
    "g": 181,
    "b": 217
  },
  "hsl": {
    "h": 194.026,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.72267,
    "c": 0.11467,
    "h": 222.3
  },
  "luminance": 0.39114
}

Semantic roles & 50–950 ramp

primary

#3FB5D9

secondary

#DAA99A

accent

#663EEA

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #3FB5D9

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

Preview Lab → · Contrast checker → · Palette generator →