#3F83CE#3F83CE

#3F83CE is a mid, vivid cyan. Relative luminance 0.217; OKLCH L 60.2% C 0.134 H 252.9°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F83CE
RGB	rgb(63, 131, 206)
HSL	hsl(211, 59%, 53%)
HSV	hsv(211, 69%, 81%)
CMYK	cmyk(69.4%, 36.4%, 0%, 19.2%)
CIE-LAB	lab(53.75, 3.05, -45.02)
CIE-LCH	lch(53.75, 45.12, 273.88°)
OKLab	oklab(60.15% -0.0395 -0.128)
OKLCH	oklch(60.15% 0.134 252.9)
XYZ	xyz(21.3027, 21.7433, 61.4547)
Luminance	0.2175 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83CE #CE8A3F

analogous

#3FCACE #3F83CE #433FCE

triadic

#3F83CE #CE3F83 #83CE3F

tetradic

#3F83CE #CE3FCA #CE8A3F #3FCE43

square

#3F83CE #CE3FCA #CE8A3F #3FCE43

split-complementary

#3F83CE #CE433F #CACE3F

monochromatic

#1E4775 #2A65A6 #3F83CE #70A2DA #A1C2E7

Accessibility & contrast

On white

3.93

#3F83CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#3F83CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83CE

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83CE	#FFFFFF	#000000	##000000
##3F83CE	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6188D1

Deuteranopia (green-blind)

#4C7ACD

Tritanopia (blue-blind)

#00959F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3f83ce;
/* rgb */ color: rgb(63, 131, 206);
/* oklch */ color: oklch(60.2% 0.134 252.9);

Tailwind

colors: {
  custom: {
    50: '#84a6dd',
    500: '#3f83ce',
    950: '#000000',
  },
}

SCSS

$custom: #3f83ce;
$custom-light: #84a6dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83ce",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 206
  },
  "hsl": {
    "h": 211.469,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.60152,
    "c": 0.13394,
    "h": 252.9
  },
  "luminance": 0.21746
}

Semantic roles & 50–950 ramp

primary

#3F83CE

secondary

#D3B695

accent

#9845E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F83CE

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

Preview Lab → · Contrast checker → · Palette generator →