#3671CC#3671CC

#3671CC is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.7% C 0.154 H 258.9°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3671CC
RGB	rgb(54, 113, 204)
HSL	hsl(216, 60%, 51%)
HSV	hsv(216, 74%, 80%)
CMYK	cmyk(73.5%, 44.6%, 0%, 20%)
CIE-LAB	lab(48.20, 12.11, -52.75)
CIE-LCH	lch(48.20, 54.12, 282.93°)
OKLab	oklab(55.71% -0.0296 -0.1511)
OKLCH	oklch(55.71% 0.154 258.9)
XYZ	xyz(18.3216, 16.9521, 59.4215)
Luminance	0.1695 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3671CC #CC9136

analogous

#36BCCC #3671CC #4636CC

triadic

#3671CC #CC3671 #71CC36

tetradic

#3671CC #CC36BC #CC9136 #36CC46

square

#3671CC #CC36BC #CC9136 #36CC46

split-complementary

#3671CC #CC4636 #BCCC36

monochromatic

#1B3B6C #28569D #3671CC #6793D8 #98B6E5

Accessibility & contrast

On white

4.78

#3671CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#3671CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3671CC

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3671CC	#FFFFFF	#000000	##FFFFFF
##3671CC	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#437ACF

Deuteranopia (green-blind)

#246CCA

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3671cc;
/* rgb */ color: rgb(54, 113, 204);
/* oklch */ color: oklch(55.7% 0.154 258.9);

Tailwind

colors: {
  custom: {
    50: '#8099dc',
    500: '#3671cc',
    950: '#000000',
  },
}

SCSS

$custom: #3671cc;
$custom-light: #8099dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3671cc",
  "rgb": {
    "r": 54,
    "g": 113,
    "b": 204
  },
  "hsl": {
    "h": 216.4,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55711,
    "c": 0.15395,
    "h": 258.9
  },
  "luminance": 0.16954
}

Semantic roles & 50–950 ramp

primary

#3671CC

secondary

#D0B68E

accent

#A545E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3671CC

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

Preview Lab → · Contrast checker → · Palette generator →