#3F9BC7#3F9BC7

#3F9BC7 is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.3% C 0.108 H 232.7°. Best body text is #000000 at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F9BC7
RGB	rgb(63, 155, 199)
HSL	hsl(199, 55%, 51%)
HSV	hsv(199, 68%, 78%)
CMYK	cmyk(68.3%, 22.1%, 0%, 22%)
CIE-LAB	lab(60.45, -13.14, -30.58)
CIE-LCH	lch(60.45, 33.29, 246.75°)
OKLab	oklab(65.33% -0.0655 -0.0858)
OKLCH	oklch(65.33% 0.108 232.7)
XYZ	xyz(24.0760, 28.6203, 58.2772)
Luminance	0.2862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9BC7 #C76B3F

analogous

#3FC7AF #3F9BC7 #3F57C7

triadic

#3F9BC7 #C73F9B #9BC73F

tetradic

#3F9BC7 #AF3FC7 #C76B3F #57C73F

square

#3F9BC7 #AF3FC7 #C76B3F #57C73F

split-complementary

#3F9BC7 #C73F57 #C7AF3F

monochromatic

#20536C #2D789B #3F9BC7 #6EB4D5 #9ECCE3

Accessibility & contrast

On white

3.12

#3F9BC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.72

#3F9BC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BC7

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9BC7	#FFFFFF	#000000	##000000
##3F9BC7	1.00	3.12	6.72	6.72
#FFFFFF	3.12	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)

#8599C9

Deuteranopia (green-blind)

#738CC6

Tritanopia (blue-blind)

#00A7AA

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f9bc7;
/* rgb */ color: rgb(63, 155, 199);
/* oklch */ color: oklch(65.3% 0.108 232.7);

Tailwind

colors: {
  custom: {
    50: '#84b8d8',
    500: '#3f9bc7',
    950: '#000000',
  },
}

SCSS

$custom: #3f9bc7;
$custom-light: #84b8d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9bc7",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 199
  },
  "hsl": {
    "h": 199.412,
    "s": 54.839,
    "l": 51.373
  },
  "oklch": {
    "l": 0.65329,
    "c": 0.10795,
    "h": 232.7
  },
  "luminance": 0.28623
}

Semantic roles & 50–950 ramp

primary

#3F9BC7

secondary

#CFA693

accent

#7A4ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9BC7

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

Preview Lab → · Contrast checker → · Palette generator →