#3F83AF#3F83AF

#3F83AF is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.5% C 0.096 H 239.7°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3F83AF
RGB	rgb(63, 131, 175)
HSL	hsl(204, 47%, 47%)
HSV	hsv(204, 64%, 69%)
CMYK	cmyk(64%, 25.1%, 0%, 31.4%)
CIE-LAB	lab(52.27, -7.65, -29.64)
CIE-LCH	lch(52.27, 30.62, 255.53°)
OKLab	oklab(58.49% -0.0487 -0.0833)
OKLCH	oklch(58.49% 0.096 239.7)
XYZ	xyz(17.9011, 20.3827, 43.5400)
Luminance	0.2039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83AF #AF6B3F

analogous

#3FAFA3 #3F83AF #3F4BAF

triadic

#3F83AF #AF3F83 #83AF3F

tetradic

#3F83AF #A33FAF #AF6B3F #4BAF3F

square

#3F83AF #A33FAF #AF6B3F #4BAF3F

split-complementary

#3F83AF #AF3F4B #AFA33F

monochromatic

#1F4055 #2F6182 #3F83AF #64A0C7 #91BCD7

Accessibility & contrast

On white

4.14

#3F83AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#3F83AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83AF

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83AF	#FFFFFF	#000000	##000000
##3F83AF	1.00	4.14	5.08	5.08
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F83B1

Deuteranopia (green-blind)

#6078AE

Tritanopia (blue-blind)

#008E92

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f83af;
/* rgb */ color: rgb(63, 131, 175);
/* oklch */ color: oklch(58.5% 0.096 239.7);

Tailwind

colors: {
  custom: {
    50: '#7fa7c7',
    500: '#3f83af',
    950: '#000000',
  },
}

SCSS

$custom: #3f83af;
$custom-light: #7fa7c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83af",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 175
  },
  "hsl": {
    "h": 203.571,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.58494,
    "c": 0.09646,
    "h": 239.7
  },
  "luminance": 0.20385
}

Semantic roles & 50–950 ramp

primary

#3F83AF

secondary

#C39F87

accent

#8651D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F83AF

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

Preview Lab → · Contrast checker → · Palette generator →