#3F83C5#3F83C5

#3F83C5 is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.6% C 0.123 H 250.0°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#3F83C5
RGB	rgb(63, 131, 197)
HSL	hsl(210, 54%, 51%)
HSV	hsv(210, 68%, 77%)
CMYK	cmyk(68%, 33.5%, 0%, 22.7%)
CIE-LAB	lab(53.30, -0.11, -40.63)
CIE-LCH	lch(53.30, 40.63, 269.85°)
OKLab	oklab(59.64% -0.0419 -0.1152)
OKLCH	oklch(59.64% 0.123 250)
XYZ	xyz(20.2405, 21.3185, 55.8607)
Luminance	0.2132 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83C5 #C5813F

analogous

#3FC5C4 #3F83C5 #3F40C5

triadic

#3F83C5 #C53F83 #83C53F

tetradic

#3F83C5 #C43FC5 #C5813F #40C53F

square

#3F83C5 #C43FC5 #C5813F #40C53F

split-complementary

#3F83C5 #C53F40 #C5C43F

monochromatic

#20456A #2E6499 #3F83C5 #6EA1D3 #9DC0E1

Accessibility & contrast

On white

3.99

#3F83C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#3F83C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83C5

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83C5	#FFFFFF	#000000	##000000
##3F83C5	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6686C8

Deuteranopia (green-blind)

#537AC4

Tritanopia (blue-blind)

#00939B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3f83c5;
/* rgb */ color: rgb(63, 131, 197);
/* oklch */ color: oklch(59.6% 0.123 250.0);

Tailwind

colors: {
  custom: {
    50: '#82a6d7',
    500: '#3f83c5',
    950: '#000000',
  },
}

SCSS

$custom: #3f83c5;
$custom-light: #82a6d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83c5",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 197
  },
  "hsl": {
    "h": 209.552,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.59644,
    "c": 0.12254,
    "h": 250
  },
  "luminance": 0.21321
}

Semantic roles & 50–950 ramp

primary

#3F83C5

secondary

#CEAF92

accent

#934BDD

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3F83C5

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

Preview Lab → · Contrast checker → · Palette generator →