#3670CD#3670CD

#3670CD is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.6% C 0.156 H 259.5°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3670CD
RGB	rgb(54, 112, 205)
HSL	hsl(217, 60%, 51%)
HSV	hsv(217, 74%, 80%)
CMYK	cmyk(73.7%, 45.4%, 0%, 19.6%)
CIE-LAB	lab(47.98, 13.11, -53.68)
CIE-LCH	lch(47.98, 55.25, 283.72°)
OKLab	oklab(55.56% -0.0285 -0.1538)
OKLCH	oklch(55.56% 0.156 259.5)
XYZ	xyz(18.3309, 16.7784, 60.0182)
Luminance	0.1678 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670CD #CD9336

analogous

#36BBCD #3670CD #4836CD

triadic

#3670CD #CD3670 #70CD36

tetradic

#3670CD #CD36BB #CD9336 #36CD48

square

#3670CD #CD36BB #CD9336 #36CD48

split-complementary

#3670CD #CD4836 #BBCD36

monochromatic

#1B3B6D #27559E #3670CD #6793D9 #98B6E5

Accessibility & contrast

On white

4.82

#3670CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3670CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670CD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670CD	#FFFFFF	#000000	##FFFFFF
##3670CD	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4079D1

Deuteranopia (green-blind)

#1F6BCB

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3670cd;
/* rgb */ color: rgb(54, 112, 205);
/* oklch */ color: oklch(55.6% 0.156 259.5);

Tailwind

colors: {
  custom: {
    50: '#8198dd',
    500: '#3670cd',
    950: '#000000',
  },
}

SCSS

$custom: #3670cd;
$custom-light: #8198dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3670cd",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 205
  },
  "hsl": {
    "h": 216.954,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55561,
    "c": 0.15645,
    "h": 259.5
  },
  "luminance": 0.1678
}

Semantic roles & 50–950 ramp

primary

#3670CD

secondary

#D1B78E

accent

#A644E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3670CD

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

Preview Lab → · Contrast checker → · Palette generator →