#3670CC#3670CC

#3670CC is a mid, vivid blue. Relative luminance 0.167; OKLCH L 55.5% C 0.155 H 259.3°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3670CC
RGB	rgb(54, 112, 204)
HSL	hsl(217, 60%, 51%)
HSV	hsv(217, 74%, 80%)
CMYK	cmyk(73.5%, 45.1%, 0%, 20%)
CIE-LAB	lab(47.92, 12.74, -53.20)
CIE-LCH	lch(47.92, 54.71, 283.46°)
OKLab	oklab(55.49% -0.0287 -0.1524)
OKLCH	oklch(55.49% 0.155 259.3)
XYZ	xyz(18.2106, 16.7302, 59.3845)
Luminance	0.1673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670CC #CC9236

analogous

#36BBCC #3670CC #4736CC

triadic

#3670CC #CC3670 #70CC36

tetradic

#3670CC #CC36BB #CC9236 #36CC47

square

#3670CC #CC36BB #CC9236 #36CC47

split-complementary

#3670CC #CC4736 #BBCC36

monochromatic

#1B3B6C #28559D #3670CC #6793D8 #98B5E5

Accessibility & contrast

On white

4.83

#3670CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#3670CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670CC

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670CC	#FFFFFF	#000000	##FFFFFF
##3670CC	1.00	4.83	4.35	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4179CF

Deuteranopia (green-blind)

#216BCA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3670cc;
/* rgb */ color: rgb(54, 112, 204);
/* oklch */ color: oklch(55.5% 0.155 259.3);

Tailwind

colors: {
  custom: {
    50: '#8098dc',
    500: '#3670cc',
    950: '#000000',
  },
}

SCSS

$custom: #3670cc;
$custom-light: #8098dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3670cc",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 204
  },
  "hsl": {
    "h": 216.8,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55494,
    "c": 0.15512,
    "h": 259.3
  },
  "luminance": 0.16732
}

Semantic roles & 50–950 ramp

primary

#3670CC

secondary

#D0B68E

accent

#A645E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3670CC

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

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