#3A6DDE#3A6DDE

#3A6DDE is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.3% C 0.181 H 263.4°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3A6DDE
RGB	rgb(58, 109, 222)
HSL	hsl(221, 71%, 55%)
HSV	hsv(221, 74%, 87%)
CMYK	cmyk(73.9%, 50.9%, 0%, 12.9%)
CIE-LAB	lab(48.40, 21.76, -62.66)
CIE-LCH	lch(48.40, 66.34, 289.15°)
OKLab	oklab(56.27% -0.0208 -0.1803)
OKLCH	oklch(56.27% 0.181 263.4)
XYZ	xyz(20.3937, 17.1085, 71.3205)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A6DDE #DEAB3A

analogous

#3ABFDE #3A6DDE #593ADE

triadic

#3A6DDE #DE3A6D #6DDE3A

tetradic

#3A6DDE #DE3ABF #DEAB3A #3ADE59

square

#3A6DDE #DE3ABF #DEAB3A #3ADE59

split-complementary

#3A6DDE #DE593A #BFDE3A

monochromatic

#173A87 #1F50BB #3A6DDE #6E94E7 #A3BBF0

Accessibility & contrast

On white

4.75

#3A6DDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3A6DDE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A6DDE

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A6DDE	#FFFFFF	#000000	##FFFFFF
##3A6DDE	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#247BE2

Deuteranopia (green-blind)

#006CDC

Tritanopia (blue-blind)

#00889B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3a6dde;
/* rgb */ color: rgb(58, 109, 222);
/* oklch */ color: oklch(56.3% 0.181 263.4);

Tailwind

colors: {
  custom: {
    50: '#8696e9',
    500: '#3a6dde',
    950: '#000000',
  },
}

SCSS

$custom: #3a6dde;
$custom-light: #8696e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a6dde",
  "rgb": {
    "r": 58,
    "g": 109,
    "b": 222
  },
  "hsl": {
    "h": 221.341,
    "s": 71.304,
    "l": 54.902
  },
  "oklch": {
    "l": 0.56271,
    "c": 0.18146,
    "h": 263.4
  },
  "luminance": 0.17111
}

Semantic roles & 50–950 ramp

primary

#3A6DDE

secondary

#DCC797

accent

#B63AEE

background

#F9F9FE

surface

#F1F1FD

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3A6DDE

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

Preview Lab → · Contrast checker → · Palette generator →