#3F80BD#3F80BD

#3F80BD is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.115 H 249.1°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F80BD
RGB	rgb(63, 128, 189)
HSL	hsl(209, 50%, 49%)
HSV	hsv(209, 67%, 74%)
CMYK	cmyk(66.7%, 32.3%, 0%, 25.9%)
CIE-LAB	lab(52.03, -1.11, -38.06)
CIE-LCH	lch(52.03, 38.08, 268.33°)
OKLab	oklab(58.52% -0.0411 -0.1077)
OKLCH	oklch(58.52% 0.115 249.1)
XYZ	xyz(18.9510, 20.1673, 51.0282)
Luminance	0.2017 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F80BD #BD7C3F

analogous

#3FBDBB #3F80BD #3F41BD

triadic

#3F80BD #BD3F80 #80BD3F

tetradic

#3F80BD #BB3FBD #BD7C3F #41BD3F

square

#3F80BD #BB3FBD #BD7C3F #41BD3F

split-complementary

#3F80BD #BD3F41 #BDBB3F

monochromatic

#204261 #30618F #3F80BD #6B9ECE #99BCDD

Accessibility & contrast

On white

4.17

#3F80BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3F80BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F80BD

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F80BD	#FFFFFF	#000000	##000000
##3F80BD	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6583C0

Deuteranopia (green-blind)

#5477BC

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f80bd;
/* rgb */ color: rgb(63, 128, 189);
/* oklch */ color: oklch(58.5% 0.115 249.1);

Tailwind

colors: {
  custom: {
    50: '#81a4d1',
    500: '#3f80bd',
    950: '#000000',
  },
}

SCSS

$custom: #3f80bd;
$custom-light: #81a4d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f80bd",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 189
  },
  "hsl": {
    "h": 209.048,
    "s": 50,
    "l": 49.412
  },
  "oklch": {
    "l": 0.58517,
    "c": 0.1153,
    "h": 249.1
  },
  "luminance": 0.20169
}

Semantic roles & 50–950 ramp

primary

#3F80BD

secondary

#C9AB8F

accent

#924EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F80BD

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

Preview Lab → · Contrast checker → · Palette generator →