#3F83AA#3F83AA

#3F83AA is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.091 H 236.4°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F83AA
RGB	rgb(63, 131, 170)
HSL	hsl(202, 46%, 46%)
HSV	hsv(202, 63%, 67%)
CMYK	cmyk(62.9%, 22.9%, 0%, 33.3%)
CIE-LAB	lab(52.05, -9.32, -27.10)
CIE-LCH	lch(52.05, 28.65, 251.03°)
OKLab	oklab(58.25% -0.0504 -0.0759)
OKLCH	oklch(58.25% 0.091 236.4)
XYZ	xyz(17.4191, 20.1899, 41.0015)
Luminance	0.2019 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83AA #AA663F

analogous

#3FAA9B #3F83AA #3F4DAA

triadic

#3F83AA #AA3F83 #83AA3F

tetradic

#3F83AA #9B3FAA #AA663F #4DAA3F

square

#3F83AA #9B3FAA #AA663F #4DAA3F

split-complementary

#3F83AA #AA3F4D #AA9B3F

monochromatic

#1E3E51 #2E617D #3F83AA #62A1C5 #8EBBD5

Accessibility & contrast

On white

4.17

#3F83AA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3F83AA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83AA

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83AA	#FFFFFF	#000000	##000000
##3F83AA	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7182AC

Deuteranopia (green-blind)

#6277A9

Tritanopia (blue-blind)

#008D90

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f83aa;
/* rgb */ color: rgb(63, 131, 170);
/* oklch */ color: oklch(58.3% 0.091 236.4);

Tailwind

colors: {
  custom: {
    50: '#7ea7c3',
    500: '#3f83aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f83aa;
$custom-light: #7ea7c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83aa",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 170
  },
  "hsl": {
    "h": 201.869,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.58252,
    "c": 0.09115,
    "h": 236.4
  },
  "luminance": 0.20192
}

Semantic roles & 50–950 ramp

primary

#3F83AA

secondary

#C09A85

accent

#8252D6

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F12

muted

#7C7F81

Preview Lab

Preview with #3F83AA

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

Preview Lab → · Contrast checker → · Palette generator →