#3F9FC7#3F9FC7

#3F9FC7 is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.3% C 0.106 H 229.2°. Best body text is #000000 at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FC7
RGB	rgb(63, 159, 199)
HSL	hsl(198, 55%, 51%)
HSV	hsv(198, 68%, 78%)
CMYK	cmyk(68.3%, 20.1%, 0%, 22%)
CIE-LAB	lab(61.63, -15.32, -28.75)
CIE-LCH	lch(61.63, 32.57, 241.95°)
OKLab	oklab(66.28% -0.0695 -0.0805)
OKLCH	oklch(66.28% 0.106 229.2)
XYZ	xyz(24.7527, 29.9738, 58.5028)
Luminance	0.2998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FC7 #C7673F

analogous

#3FC7AB #3F9FC7 #3F5BC7

triadic

#3F9FC7 #C73F9F #9FC73F

tetradic

#3F9FC7 #AB3FC7 #C7673F #5BC73F

square

#3F9FC7 #AB3FC7 #C7673F #5BC73F

split-complementary

#3F9FC7 #C73F5B #C7AB3F

monochromatic

#20566C #2D7B9B #3F9FC7 #6EB7D5 #9ECEE3

Accessibility & contrast

On white

3.00

#3F9FC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

7.00

#3F9FC7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3F9FC7

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FC7	#FFFFFF	#000000	##000000
##3F9FC7	1.00	3.00	7.00	7.00
#FFFFFF	3.00	1.00	21.00	21.00
#000000	7.00	21.00	1.00	1.00
##000000	7.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A9DC9

Deuteranopia (green-blind)

#788FC6

Tritanopia (blue-blind)

#00AAAC

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #3f9fc7;
/* rgb */ color: rgb(63, 159, 199);
/* oklch */ color: oklch(66.3% 0.106 229.2);

Tailwind

colors: {
  custom: {
    50: '#84bbd8',
    500: '#3f9fc7',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fc7;
$custom-light: #84bbd8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fc7",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 199
  },
  "hsl": {
    "h": 197.647,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.66276,
    "c": 0.10639,
    "h": 229.2
  },
  "luminance": 0.29977
}

Semantic roles & 50–950 ramp

primary

#3F9FC7

secondary

#CFA593

accent

#754ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9FC7

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

Preview Lab → · Contrast checker → · Palette generator →