#3F8BDB#3F8BDB

#3F8BDB is a light, vivid cyan. Relative luminance 0.246; OKLCH L 62.7% C 0.142 H 252.1°. Best body text is #000000 at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BDB
RGB	rgb(63, 139, 219)
HSL	hsl(211, 68%, 55%)
HSV	hsv(211, 71%, 86%)
CMYK	cmyk(71.2%, 36.5%, 0%, 14.1%)
CIE-LAB	lab(56.72, 2.88, -47.64)
CIE-LCH	lch(56.72, 47.73, 273.45°)
OKLab	oklab(62.69% -0.0438 -0.1356)
OKLCH	oklch(62.69% 0.142 252.1)
XYZ	xyz(24.0639, 24.6338, 70.4907)
Luminance	0.2464 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BDB #DB8F3F

analogous

#3FD9DB #3F8BDB #413FDB

triadic

#3F8BDB #DB3F8B #8BDB3F

tetradic

#3F8BDB #DB3FD9 #DB8F3F #3FDB41

square

#3F8BDB #DB3FD9 #DB8F3F #3FDB41

split-complementary

#3F8BDB #DB413F #D9DB3F

monochromatic

#194E86 #236CBA #3F8BDB #73AAE5 #A6C9EE

Accessibility & contrast

On white

3.54

#3F8BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.93

#3F8BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BDB

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BDB	#FFFFFF	#000000	##000000
##3F8BDB	1.00	3.54	5.93	5.93
#FFFFFF	3.54	1.00	21.00	21.00
#000000	5.93	21.00	1.00	1.00
##000000	5.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6690DE

Deuteranopia (green-blind)

#4F81D9

Tritanopia (blue-blind)

#009EA8

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f8bdb;
/* rgb */ color: rgb(63, 139, 219);
/* oklch */ color: oklch(62.7% 0.142 252.1);

Tailwind

colors: {
  custom: {
    50: '#86ace6',
    500: '#3f8bdb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bdb;
$custom-light: #86ace6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bdb",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 219
  },
  "hsl": {
    "h": 210.769,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.62689,
    "c": 0.14245,
    "h": 252.1
  },
  "luminance": 0.24636
}

Semantic roles & 50–950 ramp

primary

#3F8BDB

secondary

#DCBC9A

accent

#963DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3F8BDB

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

Preview Lab → · Contrast checker → · Palette generator →