#3FB9D4#3FB9D4

#3FB9D4 is a light, moderate cyan. Relative luminance 0.405; OKLCH L 73.0% C 0.112 H 215.7°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#3FB9D4
RGB	rgb(63, 185, 212)
HSL	hsl(191, 63%, 54%)
HSV	hsv(191, 70%, 83%)
CMYK	cmyk(70.3%, 12.7%, 0%, 16.9%)
CIE-LAB	lab(69.83, -24.75, -23.35)
CIE-LCH	lch(69.83, 34.02, 223.33°)
OKLab	oklab(73.01% -0.0907 -0.0651)
OKLCH	oklch(73.01% 0.112 215.7)
XYZ	xyz(31.2775, 40.5045, 68.4443)
Luminance	0.4051 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB9D4 #D45A3F

analogous

#3FD4A4 #3FB9D4 #3F6FD4

triadic

#3FB9D4 #D43FB9 #B9D43F

tetradic

#3FB9D4 #A43FD4 #D45A3F #6FD43F

square

#3FB9D4 #A43FD4 #D45A3F #6FD43F

split-complementary

#3FB9D4 #D43F6F #D4A43F

monochromatic

#1C6B7D #2796AF #3FB9D4 #71CBDF #A3DDEA

Accessibility & contrast

On white

2.31

#3FB9D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#3FB9D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB9D4

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB9D4	#FFFFFF	#000000	##000000
##3FB9D4	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B3D6

Deuteranopia (green-blind)

#92A4D4

Tritanopia (blue-blind)

#00C3C1

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #3fb9d4;
/* rgb */ color: rgb(63, 185, 212);
/* oklch */ color: oklch(73.0% 0.112 215.7);

Tailwind

colors: {
  custom: {
    50: '#87cee1',
    500: '#3fb9d4',
    950: '#000000',
  },
}

SCSS

$custom: #3fb9d4;
$custom-light: #87cee1;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb9d4",
  "rgb": {
    "r": 63,
    "g": 185,
    "b": 212
  },
  "hsl": {
    "h": 190.872,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.73007,
    "c": 0.11159,
    "h": 215.7
  },
  "luminance": 0.40508
}

Semantic roles & 50–950 ramp

primary

#3FB9D4

secondary

#D7A398

accent

#5F41E6

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #3FB9D4

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

Preview Lab → · Contrast checker → · Palette generator →