#3F84CC#3F84CC

#3F84CC is a mid, vivid cyan. Relative luminance 0.219; OKLCH L 60.3% C 0.130 H 251.7°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3F84CC
RGB	rgb(63, 132, 204)
HSL	hsl(211, 58%, 52%)
HSV	hsv(211, 69%, 80%)
CMYK	cmyk(69.1%, 35.3%, 0%, 20%)
CIE-LAB	lab(53.94, 1.75, -43.59)
CIE-LCH	lch(53.94, 43.63, 272.30°)
OKLab	oklab(60.26% -0.041 -0.1238)
OKLCH	oklch(60.26% 0.13 251.7)
XYZ	xyz(21.1962, 21.9167, 60.2283)
Luminance	0.2192 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F84CC #CC873F

analogous

#3FCBCC #3F84CC #403FCC

triadic

#3F84CC #CC3F84 #84CC3F

tetradic

#3F84CC #CC3FCB #CC873F #3FCC40

square

#3F84CC #CC3FCB #CC873F #3FCC40

split-complementary

#3F84CC #CC403F #CBCC3F

monochromatic

#1E4772 #2B66A3 #3F84CC #6FA3D9 #A0C2E6

Accessibility & contrast

On white

3.90

#3F84CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3F84CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F84CC

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F84CC	#FFFFFF	#000000	##000000
##3F84CC	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6488CF

Deuteranopia (green-blind)

#4F7BCB

Tritanopia (blue-blind)

#00959E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f84cc;
/* rgb */ color: rgb(63, 132, 204);
/* oklch */ color: oklch(60.3% 0.130 251.7);

Tailwind

colors: {
  custom: {
    50: '#84a7dc',
    500: '#3f84cc',
    950: '#000000',
  },
}

SCSS

$custom: #3f84cc;
$custom-light: #84a7dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f84cc",
  "rgb": {
    "r": 63,
    "g": 132,
    "b": 204
  },
  "hsl": {
    "h": 210.638,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.60263,
    "c": 0.13041,
    "h": 251.7
  },
  "luminance": 0.21919
}

Semantic roles & 50–950 ramp

primary

#3F84CC

secondary

#D2B495

accent

#9647E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F84CC

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

Preview Lab → · Contrast checker → · Palette generator →