#3F8DDB#3F8DDB

#3F8DDB is a light, vivid cyan. Relative luminance 0.252; OKLCH L 63.1% C 0.141 H 251.0°. Best body text is #000000 at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DDB
RGB	rgb(63, 141, 219)
HSL	hsl(210, 68%, 55%)
HSV	hsv(210, 71%, 86%)
CMYK	cmyk(71.2%, 35.6%, 0%, 14.1%)
CIE-LAB	lab(57.29, 1.69, -46.74)
CIE-LCH	lch(57.29, 46.77, 272.07°)
OKLab	oklab(63.14% -0.0456 -0.1329)
OKLCH	oklch(63.14% 0.141 251)
XYZ	xyz(24.3562, 25.2183, 70.5881)
Luminance	0.2522 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DDB #DB8D3F

analogous

#3FDBDB #3F8DDB #3F3FDB

triadic

#3F8DDB #DB3F8D #8DDB3F

tetradic

#3F8DDB #DB3FDB #DB8D3F #3FDB3F

square

#3F8DDB #DB3FDB #DB8D3F #3FDB3F

split-complementary

#3F8DDB #DB3F3F #DBDB3F

monochromatic

#195086 #236EBA #3F8DDB #73ACE5 #A6CAEE

Accessibility & contrast

On white

3.47

#3F8DDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.04

#3F8DDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DDB

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DDB	#FFFFFF	#000000	##000000
##3F8DDB	1.00	3.47	6.04	6.04
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.04	21.00	1.00	1.00
##000000	6.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A92DE

Deuteranopia (green-blind)

#5383D9

Tritanopia (blue-blind)

#009FAA

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f8ddb;
/* rgb */ color: rgb(63, 141, 219);
/* oklch */ color: oklch(63.1% 0.141 251.0);

Tailwind

colors: {
  custom: {
    50: '#86ade6',
    500: '#3f8ddb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8ddb;
$custom-light: #86ade6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8ddb",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 219
  },
  "hsl": {
    "h": 210,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.63136,
    "c": 0.14051,
    "h": 251
  },
  "luminance": 0.25221
}

Semantic roles & 50–950 ramp

primary

#3F8DDB

secondary

#DCBB9A

accent

#943DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3F8DDB

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

Preview Lab → · Contrast checker → · Palette generator →