#3F8BDD#3F8BDD

#3F8BDD is a light, vivid cyan. Relative luminance 0.247; OKLCH L 62.8% C 0.145 H 252.6°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F8BDD
RGB	rgb(63, 139, 221)
HSL	hsl(211, 70%, 56%)
HSV	hsv(211, 71%, 87%)
CMYK	cmyk(71.5%, 37.1%, 0%, 13.3%)
CIE-LAB	lab(56.82, 3.58, -48.60)
CIE-LCH	lch(56.82, 48.73, 274.22°)
OKLab	oklab(62.81% -0.0433 -0.1384)
OKLCH	oklch(62.81% 0.145 252.6)
XYZ	xyz(24.3288, 24.7398, 71.8857)
Luminance	0.2474 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8BDD #DD913F

analogous

#3FDADD #3F8BDD #423FDD

triadic

#3F8BDD #DD3F8B #8BDD3F

tetradic

#3F8BDD #DD3FDA #DD913F #3FDD42

square

#3F8BDD #DD3FDA #DD913F #3FDD42

split-complementary

#3F8BDD #DD423F #DADD3F

monochromatic

#184F89 #226CBD #3F8BDD #73AAE6 #A7CAEF

Accessibility & contrast

On white

3.53

#3F8BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.95

#3F8BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8BDD

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8BDD	#FFFFFF	#000000	##000000
##3F8BDD	1.00	3.53	5.95	5.95
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.95	21.00	1.00	1.00
##000000	5.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6590E0

Deuteranopia (green-blind)

#4E82DB

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f8bdd;
/* rgb */ color: rgb(63, 139, 221);
/* oklch */ color: oklch(62.8% 0.145 252.6);

Tailwind

colors: {
  custom: {
    50: '#87ace8',
    500: '#3f8bdd',
    950: '#000000',
  },
}

SCSS

$custom: #3f8bdd;
$custom-light: #87ace8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8bdd",
  "rgb": {
    "r": 63,
    "g": 139,
    "b": 221
  },
  "hsl": {
    "h": 211.139,
    "s": 69.912,
    "l": 55.686
  },
  "oklch": {
    "l": 0.62805,
    "c": 0.14497,
    "h": 252.6
  },
  "luminance": 0.24742
}

Semantic roles & 50–950 ramp

primary

#3F8BDD

secondary

#DDBD9B

accent

#973BED

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #3F8BDD

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

Preview Lab → · Contrast checker → · Palette generator →