#3670D3#3670D3

#3670D3 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.0% C 0.164 H 260.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3670D3
RGB	rgb(54, 112, 211)
HSL	hsl(218, 64%, 52%)
HSV	hsv(218, 74%, 83%)
CMYK	cmyk(74.4%, 46.9%, 0%, 17.3%)
CIE-LAB	lab(48.35, 15.33, -56.50)
CIE-LCH	lch(48.35, 58.54, 285.18°)
OKLab	oklab(55.97% -0.0275 -0.1621)
OKLCH	oklch(55.97% 0.164 260.4)
XYZ	xyz(19.0691, 17.0736, 63.9059)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670D3 #D39936

analogous

#36BFD3 #3670D3 #4A36D3

triadic

#3670D3 #D33670 #70D336

tetradic

#3670D3 #D336BF #D39936 #36D34A

square

#3670D3 #D336BF #D39936 #36D34A

split-complementary

#3670D3 #D34A36 #BFD336

monochromatic

#1A3B75 #2555A7 #3670D3 #6894DE #9AB7E9

Accessibility & contrast

On white

4.76

#3670D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3670D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670D3

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670D3	#FFFFFF	#000000	##FFFFFF
##3670D3	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7AD7

Deuteranopia (green-blind)

#0E6CD1

Tritanopia (blue-blind)

#008797

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3670d3;
/* rgb */ color: rgb(54, 112, 211);
/* oklch */ color: oklch(56.0% 0.164 260.4);

Tailwind

colors: {
  custom: {
    50: '#8298e1',
    500: '#3670d3',
    950: '#000000',
  },
}

SCSS

$custom: #3670d3;
$custom-light: #8298e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3670d3",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 211
  },
  "hsl": {
    "h": 217.834,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.55968,
    "c": 0.16446,
    "h": 260.4
  },
  "luminance": 0.17076
}

Semantic roles & 50–950 ramp

primary

#3670D3

secondary

#D5BB90

accent

#AA41E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3670D3

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

Preview Lab → · Contrast checker → · Palette generator →