#3F9AE0#3F9AE0

#3F9AE0 is a light, vivid cyan. Relative luminance 0.295; OKLCH L 66.3% C 0.135 H 245.3°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F9AE0
RGB	rgb(63, 154, 224)
HSL	hsl(206, 72%, 56%)
HSV	hsv(206, 72%, 88%)
CMYK	cmyk(71.9%, 31.3%, 0%, 12.2%)
CIE-LAB	lab(61.26, -4.12, -43.25)
CIE-LCH	lch(61.26, 43.45, 264.56°)
OKLab	oklab(66.34% -0.0564 -0.1225)
OKLCH	oklch(66.34% 0.135 245.3)
XYZ	xyz(27.0549, 29.5467, 74.7838)
Luminance	0.2955 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9AE0 #E0853F

analogous

#3FE0D6 #3F9AE0 #3F4AE0

triadic

#3F9AE0 #E03F9A #9AE03F

tetradic

#3F9AE0 #D63FE0 #E0853F #4AE03F

square

#3F9AE0 #D63FE0 #E0853F #4AE03F

split-complementary

#3F9AE0 #E03F4A #E0D63F

monochromatic

#175A8E #1F7CC2 #3F9AE0 #74B6E9 #A8D1F1

Accessibility & contrast

On white

3.04

#3F9AE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#3F9AE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9AE0

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9AE0	#FFFFFF	#000000	##000000
##3F9AE0	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)

#7A9CE3

Deuteranopia (green-blind)

#648DDF

Tritanopia (blue-blind)

#00ABB3

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9ae0;
/* rgb */ color: rgb(63, 154, 224);
/* oklch */ color: oklch(66.3% 0.135 245.3);

Tailwind

colors: {
  custom: {
    50: '#87b7ea',
    500: '#3f9ae0',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ae0;
$custom-light: #87b7ea;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ae0",
  "rgb": {
    "r": 63,
    "g": 154,
    "b": 224
  },
  "hsl": {
    "h": 206.087,
    "s": 72.197,
    "l": 56.275
  },
  "oklch": {
    "l": 0.66341,
    "c": 0.1349,
    "h": 245.3
  },
  "luminance": 0.2955
}

Semantic roles & 50–950 ramp

primary

#3F9AE0

secondary

#DFB99C

accent

#8839EF

background

#F9FBFE

surface

#F1F6FD

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #3F9AE0

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

Preview Lab → · Contrast checker → · Palette generator →