#3F83A4#3F83A4

#3F83A4 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.0% C 0.085 H 231.9°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#3F83A4
RGB	rgb(63, 131, 164)
HSL	hsl(200, 44%, 45%)
HSV	hsv(200, 62%, 64%)
CMYK	cmyk(61.6%, 20.1%, 0%, 35.7%)
CIE-LAB	lab(51.80, -11.28, -24.01)
CIE-LCH	lch(51.80, 26.53, 244.83°)
OKLab	oklab(57.97% -0.0526 -0.0671)
OKLCH	oklch(57.97% 0.085 231.9)
XYZ	xyz(16.8645, 19.9680, 38.0802)
Luminance	0.1997 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83A4 #A4603F

analogous

#3FA493 #3F83A4 #3F51A4

triadic

#3F83A4 #A43F83 #83A43F

tetradic

#3F83A4 #933FA4 #A4603F #51A43F

square

#3F83A4 #933FA4 #A4603F #51A43F

split-complementary

#3F83A4 #A43F51 #A4933F

monochromatic

#1D3C4C #2E6078 #3F83A4 #5FA1C1 #8BBBD2

Accessibility & contrast

On white

4.21

#3F83A4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#3F83A4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83A4

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83A4	#FFFFFF	#000000	##000000
##3F83A4	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7381A6

Deuteranopia (green-blind)

#6577A4

Tritanopia (blue-blind)

#008C8E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f83a4;
/* rgb */ color: rgb(63, 131, 164);
/* oklch */ color: oklch(58.0% 0.085 231.9);

Tailwind

colors: {
  custom: {
    50: '#7ea7bf',
    500: '#3f83a4',
    950: '#000000',
  },
}

SCSS

$custom: #3f83a4;
$custom-light: #7ea7bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83a4",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 164
  },
  "hsl": {
    "h": 199.604,
    "s": 44.493,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5797,
    "c": 0.08527,
    "h": 231.9
  },
  "luminance": 0.1997
}

Semantic roles & 50–950 ramp

primary

#3F83A4

secondary

#BD9582

accent

#7E54D4

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #3F83A4

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

Preview Lab → · Contrast checker → · Palette generator →