#3F99C9#3F99C9

#3F99C9 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 65.0% C 0.111 H 235.5°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F99C9
RGB	rgb(63, 153, 201)
HSL	hsl(201, 56%, 52%)
HSV	hsv(201, 69%, 79%)
CMYK	cmyk(68.7%, 23.9%, 0%, 21.2%)
CIE-LAB	lab(59.94, -11.38, -32.49)
CIE-LCH	lch(59.94, 34.43, 250.70°)
OKLab	oklab(64.95% -0.0627 -0.0913)
OKLCH	oklch(64.95% 0.111 235.5)
XYZ	xyz(23.9796, 28.0537, 59.3981)
Luminance	0.2806 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F99C9 #C96F3F

analogous

#3FC9B4 #3F99C9 #3F54C9

triadic

#3F99C9 #C93F99 #99C93F

tetradic

#3F99C9 #B43FC9 #C96F3F #54C93F

square

#3F99C9 #B43FC9 #C96F3F #54C93F

split-complementary

#3F99C9 #C93F54 #C9B43F

monochromatic

#1F536F #2D779E #3F99C9 #6FB2D6 #9FCCE4

Accessibility & contrast

On white

3.18

#3F99C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#3F99C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F99C9

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F99C9	#FFFFFF	#000000	##000000
##3F99C9	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8298CB

Deuteranopia (green-blind)

#6F8AC8

Tritanopia (blue-blind)

#00A6A9

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #3f99c9;
/* rgb */ color: rgb(63, 153, 201);
/* oklch */ color: oklch(65.0% 0.111 235.5);

Tailwind

colors: {
  custom: {
    50: '#84b7d9',
    500: '#3f99c9',
    950: '#000000',
  },
}

SCSS

$custom: #3f99c9;
$custom-light: #84b7d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f99c9",
  "rgb": {
    "r": 63,
    "g": 153,
    "b": 201
  },
  "hsl": {
    "h": 200.87,
    "s": 56.098,
    "l": 51.765
  },
  "oklch": {
    "l": 0.64953,
    "c": 0.11082,
    "h": 235.5
  },
  "luminance": 0.28056
}

Semantic roles & 50–950 ramp

primary

#3F99C9

secondary

#D0A994

accent

#7D48DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F99C9

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

Preview Lab → · Contrast checker → · Palette generator →