#3F9FC5#3F9FC5

#3F9FC5 is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.2% C 0.105 H 227.9°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FC5
RGB	rgb(63, 159, 197)
HSL	hsl(197, 54%, 51%)
HSV	hsv(197, 68%, 77%)
CMYK	cmyk(68%, 19.3%, 0%, 22.7%)
CIE-LAB	lab(61.55, -15.97, -27.75)
CIE-LCH	lch(61.55, 32.02, 240.08°)
OKLab	oklab(66.19% -0.0703 -0.0777)
OKLCH	oklch(66.19% 0.105 227.9)
XYZ	xyz(24.5220, 29.8816, 57.2879)
Luminance	0.2988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FC5 #C5653F

analogous

#3FC5A8 #3F9FC5 #3F5CC5

triadic

#3F9FC5 #C53F9F #9FC53F

tetradic

#3F9FC5 #A83FC5 #C5653F #5CC53F

square

#3F9FC5 #A83FC5 #C5653F #5CC53F

split-complementary

#3F9FC5 #C53F5C #C5A83F

monochromatic

#20556A #2E7A99 #3F9FC5 #6EB6D3 #9DCEE1

Accessibility & contrast

On white

3.01

#3F9FC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#3F9FC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9FC5

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FC5	#FFFFFF	#000000	##000000
##3F9FC5	1.00	3.01	6.98	6.98
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.98	21.00	1.00	1.00
##000000	6.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9CC7

Deuteranopia (green-blind)

#788FC5

Tritanopia (blue-blind)

#00AAAB

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #3f9fc5;
/* rgb */ color: rgb(63, 159, 197);
/* oklch */ color: oklch(66.2% 0.105 227.9);

Tailwind

colors: {
  custom: {
    50: '#84bbd6',
    500: '#3f9fc5',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fc5;
$custom-light: #84bbd6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fc5",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 197
  },
  "hsl": {
    "h": 197.015,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.66185,
    "c": 0.10474,
    "h": 227.9
  },
  "luminance": 0.29884
}

Semantic roles & 50–950 ramp

primary

#3F9FC5

secondary

#CEA392

accent

#744BDD

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9FC5

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

Preview Lab → · Contrast checker → · Palette generator →