#3671D1#3671D1

#3671D1 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.0% C 0.161 H 259.7°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#3671D1
RGB	rgb(54, 113, 209)
HSL	hsl(217, 63%, 52%)
HSV	hsv(217, 74%, 82%)
CMYK	cmyk(74.2%, 45.9%, 0%, 18%)
CIE-LAB	lab(48.51, 13.96, -55.11)
CIE-LCH	lch(48.51, 56.85, 284.21°)
OKLab	oklab(56.05% -0.0287 -0.158)
OKLCH	oklch(56.05% 0.161 259.7)
XYZ	xyz(18.9309, 17.1959, 62.6307)
Luminance	0.1720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3671D1 #D19636

analogous

#36BFD1 #3671D1 #4936D1

triadic

#3671D1 #D13671 #71D136

tetradic

#3671D1 #D136BF #D19636 #36D149

square

#3671D1 #D136BF #D19636 #36D149

split-complementary

#3671D1 #D14936 #BFD136

monochromatic

#1A3C72 #2656A4 #3671D1 #6894DC #9AB7E8

Accessibility & contrast

On white

4.73

#3671D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#3671D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3671D1

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3671D1	#FFFFFF	#000000	##FFFFFF
##3671D1	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E7BD5

Deuteranopia (green-blind)

#1A6DCF

Tritanopia (blue-blind)

#008897

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3671d1;
/* rgb */ color: rgb(54, 113, 209);
/* oklch */ color: oklch(56.0% 0.161 259.7);

Tailwind

colors: {
  custom: {
    50: '#8199e0',
    500: '#3671d1',
    950: '#000000',
  },
}

SCSS

$custom: #3671d1;
$custom-light: #8199e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3671d1",
  "rgb": {
    "r": 54,
    "g": 113,
    "b": 209
  },
  "hsl": {
    "h": 217.161,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56045,
    "c": 0.16062,
    "h": 259.7
  },
  "luminance": 0.17198
}

Semantic roles & 50–950 ramp

primary

#3671D1

secondary

#D3BA8F

accent

#A742E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3671D1

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

Preview Lab → · Contrast checker → · Palette generator →