#3F809D#3F809D

#3F809D is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.9% C 0.080 H 229.5°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#3F809D
RGB	rgb(63, 128, 157)
HSL	hsl(199, 43%, 43%)
HSV	hsv(199, 60%, 62%)
CMYK	cmyk(59.9%, 18.5%, 0%, 38.4%)
CIE-LAB	lab(50.60, -11.85, -21.79)
CIE-LCH	lch(50.60, 24.81, 241.45°)
OKLab	oklab(56.92% -0.0519 -0.0608)
OKLCH	oklch(56.92% 0.08 229.5)
XYZ	xyz(15.8525, 18.9279, 34.7098)
Luminance	0.1893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F809D #9D5C3F

analogous

#3F9D8B #3F809D #3F519D

triadic

#3F809D #9D3F80 #809D3F

tetradic

#3F809D #8B3F9D #9D5C3F #519D3F

square

#3F809D #8B3F9D #9D5C3F #519D3F

split-complementary

#3F809D #9D3F51 #9D8B3F

monochromatic

#1C3946 #2D5C71 #3F809D #5C9FBD #87B9CF

Accessibility & contrast

On white

4.39

#3F809D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#3F809D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F809D

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F809D	#FFFFFF	#000000	##000000
##3F809D	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#717E9E

Deuteranopia (green-blind)

#64749D

Tritanopia (blue-blind)

#008889

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3f809d;
/* rgb */ color: rgb(63, 128, 157);
/* oklch */ color: oklch(56.9% 0.080 229.5);

Tailwind

colors: {
  custom: {
    50: '#7da4ba',
    500: '#3f809d',
    950: '#000000',
  },
}

SCSS

$custom: #3f809d;
$custom-light: #7da4ba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f809d",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 157
  },
  "hsl": {
    "h": 198.511,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.56922,
    "c": 0.07989,
    "h": 229.5
  },
  "luminance": 0.18929
}

Semantic roles & 50–950 ramp

primary

#3F809D

secondary

#BA917E

accent

#7C55D3

background

#F8FAFB

surface

#EFF4F6

border

#CACED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #3F809D

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

Preview Lab → · Contrast checker → · Palette generator →