#3F9DCC#3F9DCC

#3F9DCC is a light, moderate cyan. Relative luminance 0.295; OKLCH L 66.0% C 0.112 H 233.9°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F9DCC
RGB	rgb(63, 157, 204)
HSL	hsl(200, 58%, 52%)
HSV	hsv(200, 69%, 80%)
CMYK	cmyk(69.1%, 23%, 0%, 20%)
CIE-LAB	lab(61.24, -12.58, -32.14)
CIE-LCH	lch(61.24, 34.52, 248.62°)
OKLab	oklab(66.03% -0.0657 -0.0903)
OKLCH	oklch(66.03% 0.112 233.9)
XYZ	xyz(25.0017, 29.5276, 61.4968)
Luminance	0.2953 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9DCC #CC6E3F

analogous

#3FCCB5 #3F9DCC #3F56CC

triadic

#3F9DCC #CC3F9D #9DCC3F

tetradic

#3F9DCC #B53FCC #CC6E3F #56CC3F

square

#3F9DCC #B53FCC #CC6E3F #56CC3F

split-complementary

#3F9DCC #CC3F56 #CCB53F

monochromatic

#1E5672 #2B7BA3 #3F9DCC #6FB6D9 #A0CEE6

Accessibility & contrast

On white

3.04

#3F9DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#3F9DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9DCC

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9DCC	#FFFFFF	#000000	##000000
##3F9DCC	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869CCE

Deuteranopia (green-blind)

#738ECB

Tritanopia (blue-blind)

#00A9AD

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9dcc;
/* rgb */ color: rgb(63, 157, 204);
/* oklch */ color: oklch(66.0% 0.112 233.9);

Tailwind

colors: {
  custom: {
    50: '#84b9db',
    500: '#3f9dcc',
    950: '#000000',
  },
}

SCSS

$custom: #3f9dcc;
$custom-light: #84b9db;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9dcc",
  "rgb": {
    "r": 63,
    "g": 157,
    "b": 204
  },
  "hsl": {
    "h": 200,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.66034,
    "c": 0.11169,
    "h": 233.9
  },
  "luminance": 0.2953
}

Semantic roles & 50–950 ramp

primary

#3F9DCC

secondary

#D2A995

accent

#7A47E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9DCC

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

Preview Lab → · Contrast checker → · Palette generator →