#3671CB#3671CB

#3671CB is a mid, vivid blue. Relative luminance 0.169; OKLCH L 55.6% C 0.153 H 258.8°. Best body text is #FFFFFF at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#3671CB
RGB	rgb(54, 113, 203)
HSL	hsl(216, 59%, 50%)
HSV	hsv(216, 73%, 80%)
CMYK	cmyk(73.4%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(48.14, 11.74, -52.28)
CIE-LCH	lch(48.14, 53.58, 282.66°)
OKLab	oklab(55.65% -0.0297 -0.1497)
OKLCH	oklch(55.65% 0.153 258.8)
XYZ	xyz(18.2020, 16.9043, 58.7919)
Luminance	0.1691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3671CB #CB9036

analogous

#36BBCB #3671CB #4636CB

triadic

#3671CB #CB3671 #71CB36

tetradic

#3671CB #CB36BB #CB9036 #36CB46

square

#3671CB #CB36BB #CB9036 #36CB46

split-complementary

#3671CB #CB4636 #BBCB36

monochromatic

#1C3B6B #28569C #3671CB #6793D8 #97B6E4

Accessibility & contrast

On white

4.79

#3671CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#3671CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3671CB

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3671CB	#FFFFFF	#000000	##FFFFFF
##3671CB	1.00	4.79	4.38	4.79
#FFFFFF	4.79	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#447ACE

Deuteranopia (green-blind)

#266CC9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3671cb;
/* rgb */ color: rgb(54, 113, 203);
/* oklch */ color: oklch(55.6% 0.153 258.8);

Tailwind

colors: {
  custom: {
    50: '#8099db',
    500: '#3671cb',
    950: '#000000',
  },
}

SCSS

$custom: #3671cb;
$custom-light: #8099db;
$custom-dark: #000000;

JSON

{
  "hex": "#3671cb",
  "rgb": {
    "r": 54,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 216.242,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55645,
    "c": 0.15263,
    "h": 258.8
  },
  "luminance": 0.16906
}

Semantic roles & 50–950 ramp

primary

#3671CB

secondary

#D0B58D

accent

#A446E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3671CB

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

Preview Lab → · Contrast checker → · Palette generator →