#3F9CBF#3F9CBF

#3F9CBF is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.2% C 0.101 H 226.5°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F9CBF
RGB	rgb(63, 156, 191)
HSL	hsl(196, 50%, 50%)
HSV	hsv(196, 67%, 75%)
CMYK	cmyk(67%, 18.3%, 0%, 25.1%)
CIE-LAB	lab(60.42, -16.30, -26.13)
CIE-LCH	lch(60.42, 30.80, 238.04°)
OKLab	oklab(65.2% -0.0694 -0.073)
OKLCH	oklch(65.2% 0.101 226.5)
XYZ	xyz(23.3386, 28.5928, 53.5691)
Luminance	0.2859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9CBF #BF623F

analogous

#3FBFA2 #3F9CBF #3F5CBF

triadic

#3F9CBF #BF3F9C #9CBF3F

tetradic

#3F9CBF #A23FBF #BF623F #5CBF3F

square

#3F9CBF #A23FBF #BF623F #5CBF3F

split-complementary

#3F9CBF #BF3F5C #BFA23F

monochromatic

#215163 #307691 #3F9CBF #6DB4CF #9BCBDE

Accessibility & contrast

On white

3.13

#3F9CBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#3F9CBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9CBF

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9CBF	#FFFFFF	#000000	##000000
##3F9CBF	1.00	3.13	6.72	6.72
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.72	21.00	1.00	1.00
##000000	6.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8999C1

Deuteranopia (green-blind)

#778CBF

Tritanopia (blue-blind)

#00A6A7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f9cbf;
/* rgb */ color: rgb(63, 156, 191);
/* oklch */ color: oklch(65.2% 0.101 226.5);

Tailwind

colors: {
  custom: {
    50: '#83b9d2',
    500: '#3f9cbf',
    950: '#000000',
  },
}

SCSS

$custom: #3f9cbf;
$custom-light: #83b9d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9cbf",
  "rgb": {
    "r": 63,
    "g": 156,
    "b": 191
  },
  "hsl": {
    "h": 196.406,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.65203,
    "c": 0.10077,
    "h": 226.5
  },
  "luminance": 0.28595
}

Semantic roles & 50–950 ramp

primary

#3F9CBF

secondary

#CAA090

accent

#744EDA

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #3F9CBF

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

Preview Lab → · Contrast checker → · Palette generator →