#3F8ADB#3F8ADB

#3F8ADB is a light, vivid cyan. Relative luminance 0.243; OKLCH L 62.5% C 0.143 H 252.6°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F8ADB
RGB	rgb(63, 138, 219)
HSL	hsl(211, 68%, 55%)
HSV	hsv(211, 71%, 86%)
CMYK	cmyk(71.2%, 37%, 0%, 14.1%)
CIE-LAB	lab(56.43, 3.47, -48.09)
CIE-LCH	lch(56.43, 48.22, 274.13°)
OKLab	oklab(62.47% -0.0428 -0.1369)
OKLCH	oklch(62.47% 0.143 252.6)
XYZ	xyz(23.9198, 24.3456, 70.4426)
Luminance	0.2435 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8ADB #DB903F

analogous

#3FD8DB #3F8ADB #423FDB

triadic

#3F8ADB #DB3F8A #8ADB3F

tetradic

#3F8ADB #DB3FD8 #DB903F #3FDB42

square

#3F8ADB #DB3FD8 #DB903F #3FDB42

split-complementary

#3F8ADB #DB423F #D8DB3F

monochromatic

#194E86 #236BBA #3F8ADB #73A9E5 #A6C9EE

Accessibility & contrast

On white

3.58

#3F8ADB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#3F8ADB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8ADB

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8ADB	#FFFFFF	#000000	##000000
##3F8ADB	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#658FDE

Deuteranopia (green-blind)

#4E81D9

Tritanopia (blue-blind)

#009DA8

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8adb;
/* rgb */ color: rgb(63, 138, 219);
/* oklch */ color: oklch(62.5% 0.143 252.6);

Tailwind

colors: {
  custom: {
    50: '#86abe6',
    500: '#3f8adb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8adb;
$custom-light: #86abe6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8adb",
  "rgb": {
    "r": 63,
    "g": 138,
    "b": 219
  },
  "hsl": {
    "h": 211.154,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.62467,
    "c": 0.14345,
    "h": 252.6
  },
  "luminance": 0.24348
}

Semantic roles & 50–950 ramp

primary

#3F8ADB

secondary

#DCBC9A

accent

#973DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3F8ADB

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

Preview Lab → · Contrast checker → · Palette generator →