#3FB1D9#3FB1D9

#3FB1D9 is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.3% C 0.115 H 225.5°. Best body text is #000000 at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#3FB1D9
RGB	rgb(63, 177, 217)
HSL	hsl(196, 67%, 55%)
HSV	hsv(196, 71%, 85%)
CMYK	cmyk(71%, 18.4%, 0%, 14.9%)
CIE-LAB	lab(67.66, -19.05, -29.42)
CIE-LCH	lch(67.66, 35.05, 237.07°)
OKLab	oklab(71.33% -0.0809 -0.0824)
OKLCH	oklch(71.33% 0.115 225.5)
XYZ	xyz(30.2913, 37.5073, 71.2754)
Luminance	0.3751 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB1D9 #D9673F

analogous

#3FD9B4 #3FB1D9 #3F64D9

triadic

#3FB1D9 #D93FB1 #B1D93F

tetradic

#3FB1D9 #B43FD9 #D9673F #64D93F

square

#3FB1D9 #B43FD9 #D9673F #64D93F

split-complementary

#3FB1D9 #D93F64 #D9B43F

monochromatic

#1A6884 #2491B7 #3FB1D9 #72C6E3 #A5DBED

Accessibility & contrast

On white

2.47

#3FB1D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.50

#3FB1D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB1D9

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB1D9	#FFFFFF	#000000	##000000
##3FB1D9	1.00	2.47	8.50	8.50
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.50	21.00	1.00	1.00
##000000	8.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BADDB

Deuteranopia (green-blind)

#869ED9

Tritanopia (blue-blind)

#00BDBE

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #3fb1d9;
/* rgb */ color: rgb(63, 177, 217);
/* oklch */ color: oklch(71.3% 0.115 225.5);

Tailwind

colors: {
  custom: {
    50: '#87c8e5',
    500: '#3fb1d9',
    950: '#000000',
  },
}

SCSS

$custom: #3fb1d9;
$custom-light: #87c8e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb1d9",
  "rgb": {
    "r": 63,
    "g": 177,
    "b": 217
  },
  "hsl": {
    "h": 195.584,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.71326,
    "c": 0.11545,
    "h": 225.5
  },
  "luminance": 0.37511
}

Semantic roles & 50–950 ramp

primary

#3FB1D9

secondary

#DAAA9A

accent

#6B3EEA

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #3FB1D9

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

Preview Lab → · Contrast checker → · Palette generator →