#3F7FC9#3F7FC9

#3F7FC9 is a mid, vivid cyan. Relative luminance 0.205; OKLCH L 59.0% C 0.132 H 253.7°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FC9
RGB	rgb(63, 127, 201)
HSL	hsl(212, 56%, 52%)
HSV	hsv(212, 69%, 79%)
CMYK	cmyk(68.7%, 36.8%, 0%, 21.2%)
CIE-LAB	lab(52.34, 3.69, -44.42)
CIE-LCH	lch(52.34, 44.57, 274.75°)
OKLab	oklab(58.96% -0.0369 -0.1263)
OKLCH	oklch(58.96% 0.132 253.7)
XYZ	xyz(20.1780, 20.4504, 58.1309)
Luminance	0.2045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FC9 #C9893F

analogous

#3FC4C9 #3F7FC9 #443FC9

triadic

#3F7FC9 #C93F7F #7FC93F

tetradic

#3F7FC9 #C93FC4 #C9893F #3FC944

square

#3F7FC9 #C93FC4 #C9893F #3FC944

split-complementary

#3F7FC9 #C9443F #C4C93F

monochromatic

#1F446F #2D619E #3F7FC9 #6F9FD6 #9FBFE4

Accessibility & contrast

On white

4.13

#3F7FC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#3F7FC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FC9

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FC9	#FFFFFF	#000000	##000000
##3F7FC9	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E84CC

Deuteranopia (green-blind)

#4A77C8

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f7fc9;
/* rgb */ color: rgb(63, 127, 201);
/* oklch */ color: oklch(59.0% 0.132 253.7);

Tailwind

colors: {
  custom: {
    50: '#83a3da',
    500: '#3f7fc9',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fc9;
$custom-light: #83a3da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fc9",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 201
  },
  "hsl": {
    "h": 212.174,
    "s": 56.098,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58964,
    "c": 0.13155,
    "h": 253.7
  },
  "luminance": 0.20453
}

Semantic roles & 50–950 ramp

primary

#3F7FC9

secondary

#D0B494

accent

#9948DF

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F7FC9

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

Preview Lab → · Contrast checker → · Palette generator →