#3F99C3#3F99C3

#3F99C3 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.7% C 0.105 H 231.9°. Best body text is #000000 at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F99C3
RGB	rgb(63, 153, 195)
HSL	hsl(199, 52%, 51%)
HSV	hsv(199, 68%, 76%)
CMYK	cmyk(67.7%, 21.5%, 0%, 23.5%)
CIE-LAB	lab(59.69, -13.36, -29.51)
CIE-LCH	lch(59.69, 32.40, 245.64°)
OKLab	oklab(64.67% -0.0648 -0.0828)
OKLCH	oklch(64.67% 0.105 231.9)
XYZ	xyz(23.2876, 27.7768, 55.7533)
Luminance	0.2778 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99C3 #C3693F

analogous

#3FC3AB #3F99C3 #3F57C3

triadic

#3F99C3 #C33F99 #99C33F

tetradic

#3F99C3 #AB3FC3 #C3693F #57C33F

square

#3F99C3 #AB3FC3 #C3693F #57C33F

split-complementary

#3F99C3 #C33F57 #C3AB3F

monochromatic

#205167 #2F7596 #3F99C3 #6EB2D2 #9CCBE0

Accessibility & contrast

On white

3.20

#3F99C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.56

#3F99C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99C3

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99C3	#FFFFFF	#000000	##000000
##3F99C3	1.00	3.20	6.56	6.56
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.56	21.00	1.00	1.00
##000000	6.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8497C5

Deuteranopia (green-blind)

#728AC2

Tritanopia (blue-blind)

#00A4A7

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3f99c3;
/* rgb */ color: rgb(63, 153, 195);
/* oklch */ color: oklch(64.7% 0.105 231.9);

Tailwind

colors: {
  custom: {
    50: '#83b7d5',
    500: '#3f99c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f99c3;
$custom-light: #83b7d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99c3",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 195
  },
  "hsl": {
    "h": 199.091,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.64671,
    "c": 0.10514,
    "h": 231.9
  },
  "luminance": 0.27779
}

Semantic roles & 50–950 ramp

primary

#3F99C3

secondary

#CCA492

accent

#7A4CDC

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F99C3

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

Preview Lab → · Contrast checker → · Palette generator →