#3F9FCC#3F9FCC

#3F9FCC is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.5% C 0.111 H 232.3°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FCC
RGB	rgb(63, 159, 204)
HSL	hsl(199, 58%, 52%)
HSV	hsv(199, 69%, 80%)
CMYK	cmyk(69.1%, 22.1%, 0%, 20%)
CIE-LAB	lab(61.83, -13.68, -31.22)
CIE-LCH	lch(61.83, 34.09, 246.34°)
OKLab	oklab(66.51% -0.0677 -0.0876)
OKLCH	oklch(66.51% 0.111 232.3)
XYZ	xyz(25.3428, 30.2099, 61.6105)
Luminance	0.3021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FCC #CC6C3F

analogous

#3FCCB3 #3F9FCC #3F58CC

triadic

#3F9FCC #CC3F9F #9FCC3F

tetradic

#3F9FCC #B33FCC #CC6C3F #58CC3F

square

#3F9FCC #B33FCC #CC6C3F #58CC3F

split-complementary

#3F9FCC #CC3F58 #CCB33F

monochromatic

#1E5772 #2B7CA3 #3F9FCC #6FB7D9 #A0CFE6

Accessibility & contrast

On white

2.98

#3F9FCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#3F9FCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3F9FCC

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FCC	#FFFFFF	#000000	##000000
##3F9FCC	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899DCE

Deuteranopia (green-blind)

#758FCB

Tritanopia (blue-blind)

#00ABAE

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #3f9fcc;
/* rgb */ color: rgb(63, 159, 204);
/* oklch */ color: oklch(66.5% 0.111 232.3);

Tailwind

colors: {
  custom: {
    50: '#84bbdb',
    500: '#3f9fcc',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fcc;
$custom-light: #84bbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fcc",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 204
  },
  "hsl": {
    "h": 199.149,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.66505,
    "c": 0.11078,
    "h": 232.3
  },
  "luminance": 0.30213
}

Semantic roles & 50–950 ramp

primary

#3F9FCC

secondary

#D2A895

accent

#7847E1

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9FCC

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

Preview Lab → · Contrast checker → · Palette generator →