#3FB9DF#3FB9DF

#3FB9DF is a light, moderate cyan. Relative luminance 0.411; OKLCH L 73.5% C 0.118 H 222.9°. Best body text is #000000 at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#3FB9DF
RGB	rgb(63, 185, 223)
HSL	hsl(194, 71%, 56%)
HSV	hsv(194, 72%, 87%)
CMYK	cmyk(71.7%, 17%, 0%, 12.5%)
CIE-LAB	lab(70.23, -21.29, -28.74)
CIE-LCH	lch(70.23, 35.76, 233.47°)
OKLab	oklab(73.46% -0.0864 -0.0804)
OKLCH	oklch(73.46% 0.118 222.9)
XYZ	xyz(32.7127, 41.0786, 76.0026)
Luminance	0.4108 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FB9DF #DF653F

analogous

#3FDFB5 #3FB9DF #3F69DF

triadic

#3FB9DF #DF3FB9 #B9DF3F

tetradic

#3FB9DF #B53FDF #DF653F #69DF3F

square

#3FB9DF #B53FDF #DF653F #69DF3F

split-complementary

#3FB9DF #DF3F69 #DFB53F

monochromatic

#17708C #209BC1 #3FB9DF #73CCE8 #A8DFF0

Accessibility & contrast

On white

2.28

#3FB9DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.22

#3FB9DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FB9DF

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FB9DF	#FFFFFF	#000000	##000000
##3FB9DF	1.00	2.28	9.22	9.22
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.22	21.00	1.00	1.00
##000000	9.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3B5E1

Deuteranopia (green-blind)

#8DA5DF

Tritanopia (blue-blind)

#00C5C5

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #3fb9df;
/* rgb */ color: rgb(63, 185, 223);
/* oklch */ color: oklch(73.5% 0.118 222.9);

Tailwind

colors: {
  custom: {
    50: '#89cee9',
    500: '#3fb9df',
    950: '#000000',
  },
}

SCSS

$custom: #3fb9df;
$custom-light: #89cee9;
$custom-dark: #000000;

JSON

{
  "hex": "#3fb9df",
  "rgb": {
    "r": 63,
    "g": 185,
    "b": 223
  },
  "hsl": {
    "h": 194.25,
    "s": 71.429,
    "l": 56.078
  },
  "oklch": {
    "l": 0.73464,
    "c": 0.11805,
    "h": 222.9
  },
  "luminance": 0.41082
}

Semantic roles & 50–950 ramp

primary

#3FB9DF

secondary

#DEAC9C

accent

#653AEE

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #3FB9DF

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

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