#3F9ECC#3F9ECC

#3F9ECC is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.3% C 0.111 H 233.1°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F9ECC
RGB	rgb(63, 158, 204)
HSL	hsl(200, 58%, 52%)
HSV	hsv(200, 69%, 80%)
CMYK	cmyk(69.1%, 22.5%, 0%, 20%)
CIE-LAB	lab(61.54, -13.13, -31.68)
CIE-LCH	lch(61.54, 34.30, 247.49°)
OKLab	oklab(66.27% -0.0667 -0.089)
OKLCH	oklch(66.27% 0.111 233.1)
XYZ	xyz(25.1715, 29.8673, 61.5534)
Luminance	0.2987 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9ECC #CC6D3F

analogous

#3FCCB3 #3F9ECC #3F58CC

triadic

#3F9ECC #CC3F9E #9ECC3F

tetradic

#3F9ECC #B33FCC #CC6D3F #58CC3F

square

#3F9ECC #B33FCC #CC6D3F #58CC3F

split-complementary

#3F9ECC #CC3F58 #CCB33F

monochromatic

#1E5772 #2B7CA3 #3F9ECC #6FB6D9 #A0CFE6

Accessibility & contrast

On white

3.01

#3F9ECC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#3F9ECC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9ECC

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9ECC	#FFFFFF	#000000	##000000
##3F9ECC	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879CCE

Deuteranopia (green-blind)

#748ECB

Tritanopia (blue-blind)

#00AAAD

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #3f9ecc;
/* rgb */ color: rgb(63, 158, 204);
/* oklch */ color: oklch(66.3% 0.111 233.1);

Tailwind

colors: {
  custom: {
    50: '#84badb',
    500: '#3f9ecc',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ecc;
$custom-light: #84badb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ecc",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 204
  },
  "hsl": {
    "h": 199.574,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.6627,
    "c": 0.11123,
    "h": 233.1
  },
  "luminance": 0.2987
}

Semantic roles & 50–950 ramp

primary

#3F9ECC

secondary

#D2A995

accent

#7947E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9ECC

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

Preview Lab → · Contrast checker → · Palette generator →