#3F9CD4#3F9CD4

#3F9CD4 is a light, vivid cyan. Relative luminance 0.296; OKLCH L 66.2% C 0.120 H 238.9°. Best body text is #000000 at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F9CD4
RGB	rgb(63, 156, 212)
HSL	hsl(203, 63%, 54%)
HSV	hsv(203, 70%, 83%)
CMYK	cmyk(70.3%, 26.4%, 0%, 16.9%)
CIE-LAB	lab(61.29, -9.35, -36.53)
CIE-LCH	lch(61.29, 37.71, 255.64°)
OKLab	oklab(66.19% -0.062 -0.103)
OKLCH	oklch(66.19% 0.12 238.9)
XYZ	xyz(25.8174, 29.5843, 66.6243)
Luminance	0.2959 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9CD4 #D4773F

analogous

#3FD4C1 #3F9CD4 #3F52D4

triadic

#3F9CD4 #D43F9C #9CD43F

tetradic

#3F9CD4 #C13FD4 #D4773F #52D43F

square

#3F9CD4 #C13FD4 #D4773F #52D43F

split-complementary

#3F9CD4 #D43F52 #D4C13F

monochromatic

#1C587D #277CAF #3F9CD4 #71B6DF #A3D0EA

Accessibility & contrast

On white

3.04

#3F9CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.92

#3F9CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9CD4

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9CD4	#FFFFFF	#000000	##000000
##3F9CD4	1.00	3.04	6.92	6.92
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.92	21.00	1.00	1.00
##000000	6.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#829CD7

Deuteranopia (green-blind)

#6D8ED3

Tritanopia (blue-blind)

#00AAAF

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9cd4;
/* rgb */ color: rgb(63, 156, 212);
/* oklch */ color: oklch(66.2% 0.120 238.9);

Tailwind

colors: {
  custom: {
    50: '#86b9e1',
    500: '#3f9cd4',
    950: '#000000',
  },
}

SCSS

$custom: #3f9cd4;
$custom-light: #86b9e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9cd4",
  "rgb": {
    "r": 63,
    "g": 156,
    "b": 212
  },
  "hsl": {
    "h": 202.55,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.66187,
    "c": 0.12023,
    "h": 238.9
  },
  "luminance": 0.29587
}

Semantic roles & 50–950 ramp

primary

#3F9CD4

secondary

#D7B098

accent

#7F41E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9CD4

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

Preview Lab → · Contrast checker → · Palette generator →