#3FBBDD#3FBBDD

#3FBBDD is a light, moderate cyan. Relative luminance 0.418; OKLCH L 73.9% C 0.117 H 220.1°. Best body text is #000000 at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#3FBBDD
RGB	rgb(63, 187, 221)
HSL	hsl(193, 70%, 56%)
HSV	hsv(193, 71%, 87%)
CMYK	cmyk(71.5%, 15.4%, 0%, 13.3%)
CIE-LAB	lab(70.74, -22.95, -26.86)
CIE-LCH	lch(70.74, 35.33, 229.50°)
OKLab	oklab(73.85% -0.0891 -0.075)
OKLCH	oklch(73.85% 0.117 220.1)
XYZ	xyz(32.8659, 41.8140, 74.7314)
Luminance	0.4182 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3FBBDD #DD613F

analogous

#3FDDB0 #3FBBDD #3F6CDD

triadic

#3FBBDD #DD3FBB #BBDD3F

tetradic

#3FBBDD #B03FDD #DD613F #6CDD3F

square

#3FBBDD #B03FDD #DD613F #6CDD3F

split-complementary

#3FBBDD #DD3F6C #DDB03F

monochromatic

#187189 #229CBD #3FBBDD #73CDE6 #A7E0EF

Accessibility & contrast

On white

2.24

#3FBBDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.36

#3FBBDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FBBDD

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3FBBDD	#FFFFFF	#000000	##000000
##3FBBDD	1.00	2.24	9.36	9.36
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.36	21.00	1.00	1.00
##000000	9.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B6DF

Deuteranopia (green-blind)

#91A6DD

Tritanopia (blue-blind)

#00C6C6

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #3fbbdd;
/* rgb */ color: rgb(63, 187, 221);
/* oklch */ color: oklch(73.9% 0.117 220.1);

Tailwind

colors: {
  custom: {
    50: '#89cfe7',
    500: '#3fbbdd',
    950: '#000000',
  },
}

SCSS

$custom: #3fbbdd;
$custom-light: #89cfe7;
$custom-dark: #000000;

JSON

{
  "hex": "#3fbbdd",
  "rgb": {
    "r": 63,
    "g": 187,
    "b": 221
  },
  "hsl": {
    "h": 192.911,
    "s": 69.912,
    "l": 55.686
  },
  "oklch": {
    "l": 0.7385,
    "c": 0.11651,
    "h": 220.1
  },
  "luminance": 0.41818
}

Semantic roles & 50–950 ramp

primary

#3FBBDD

secondary

#DDA99B

accent

#613BED

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #3FBBDD

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

Preview Lab → · Contrast checker → · Palette generator →