#3F99C5#3F99C5

#3F99C5 is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.8% C 0.107 H 233.2°. Best body text is #000000 at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F99C5
RGB	rgb(63, 153, 197)
HSL	hsl(200, 54%, 51%)
HSV	hsv(200, 68%, 77%)
CMYK	cmyk(68%, 22.3%, 0%, 22.7%)
CIE-LAB	lab(59.77, -12.70, -30.51)
CIE-LCH	lch(59.77, 33.05, 247.39°)
OKLab	oklab(64.76% -0.0641 -0.0856)
OKLCH	oklch(64.76% 0.107 233.2)
XYZ	xyz(23.5152, 27.8679, 56.9522)
Luminance	0.2787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99C5 #C56B3F

analogous

#3FC5AE #3F99C5 #3F56C5

triadic

#3F99C5 #C53F99 #99C53F

tetradic

#3F99C5 #AE3FC5 #C56B3F #56C53F

square

#3F99C5 #AE3FC5 #C56B3F #56C53F

split-complementary

#3F99C5 #C53F56 #C5AE3F

monochromatic

#20516A #2E7699 #3F99C5 #6EB2D3 #9DCBE1

Accessibility & contrast

On white

3.19

#3F99C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.57

#3F99C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99C5

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99C5	#FFFFFF	#000000	##000000
##3F99C5	1.00	3.19	6.57	6.57
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.57	21.00	1.00	1.00
##000000	6.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8397C7

Deuteranopia (green-blind)

#718AC4

Tritanopia (blue-blind)

#00A5A8

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3f99c5;
/* rgb */ color: rgb(63, 153, 197);
/* oklch */ color: oklch(64.8% 0.107 233.2);

Tailwind

colors: {
  custom: {
    50: '#83b7d6',
    500: '#3f99c5',
    950: '#000000',
  },
}

SCSS

$custom: #3f99c5;
$custom-light: #83b7d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99c5",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 197
  },
  "hsl": {
    "h": 199.701,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.64764,
    "c": 0.10699,
    "h": 233.2
  },
  "luminance": 0.2787
}

Semantic roles & 50–950 ramp

primary

#3F99C5

secondary

#CEA692

accent

#7B4BDD

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F99C5

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

Preview Lab → · Contrast checker → · Palette generator →