#3F99C0#3F99C0

#3F99C0 is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.5% C 0.102 H 230.0°. Best body text is #000000 at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F99C0
RGB	rgb(63, 153, 192)
HSL	hsl(198, 51%, 50%)
HSV	hsv(198, 67%, 75%)
CMYK	cmyk(67.2%, 20.3%, 0%, 24.7%)
CIE-LAB	lab(59.56, -14.35, -28.01)
CIE-LCH	lch(59.56, 31.47, 242.88°)
OKLab	oklab(64.53% -0.0659 -0.0785)
OKLCH	oklch(64.53% 0.102 230)
XYZ	xyz(22.9518, 27.6425, 53.9849)
Luminance	0.2764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99C0 #C0663F

analogous

#3FC0A7 #3F99C0 #3F58C0

triadic

#3F99C0 #C03F99 #99C03F

tetradic

#3F99C0 #A73FC0 #C0663F #58C03F

square

#3F99C0 #A73FC0 #C0663F #58C03F

split-complementary

#3F99C0 #C03F58 #C0A73F

monochromatic

#215064 #307492 #3F99C0 #6DB1CF #9BCADE

Accessibility & contrast

On white

3.22

#3F99C0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.53

#3F99C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99C0

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99C0	#FFFFFF	#000000	##000000
##3F99C0	1.00	3.22	6.53	6.53
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.53	21.00	1.00	1.00
##000000	6.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8597C2

Deuteranopia (green-blind)

#738ABF

Tritanopia (blue-blind)

#00A4A6

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #3f99c0;
/* rgb */ color: rgb(63, 153, 192);
/* oklch */ color: oklch(64.5% 0.102 230.0);

Tailwind

colors: {
  custom: {
    50: '#83b7d3',
    500: '#3f99c0',
    950: '#000000',
  },
}

SCSS

$custom: #3f99c0;
$custom-light: #83b7d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99c0",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 192
  },
  "hsl": {
    "h": 198.14,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.64533,
    "c": 0.10248,
    "h": 230
  },
  "luminance": 0.27645
}

Semantic roles & 50–950 ramp

primary

#3F99C0

secondary

#CAA291

accent

#784EDA

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #3F99C0

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

Preview Lab → · Contrast checker → · Palette generator →