#3671CD#3671CD

#3671CD is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.155 H 259.1°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3671CD
RGB	rgb(54, 113, 205)
HSL	hsl(217, 60%, 51%)
HSV	hsv(217, 74%, 80%)
CMYK	cmyk(73.7%, 44.9%, 0%, 19.6%)
CIE-LAB	lab(48.26, 12.48, -53.22)
CIE-LCH	lch(48.26, 54.67, 283.19°)
OKLab	oklab(55.78% -0.0294 -0.1525)
OKLCH	oklch(55.78% 0.155 259.1)
XYZ	xyz(18.4419, 17.0003, 60.0552)
Luminance	0.1700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3671CD #CD9236

analogous

#36BCCD #3671CD #4636CD

triadic

#3671CD #CD3671 #71CD36

tetradic

#3671CD #CD36BC #CD9236 #36CD46

square

#3671CD #CD36BC #CD9236 #36CD46

split-complementary

#3671CD #CD4636 #BCCD36

monochromatic

#1B3B6D #27569E #3671CD #6794D9 #98B6E5

Accessibility & contrast

On white

4.77

#3671CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3671CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3671CD

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3671CD	#FFFFFF	#000000	##FFFFFF
##3671CD	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#427AD0

Deuteranopia (green-blind)

#236CCB

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3671cd;
/* rgb */ color: rgb(54, 113, 205);
/* oklch */ color: oklch(55.8% 0.155 259.1);

Tailwind

colors: {
  custom: {
    50: '#8199dd',
    500: '#3671cd',
    950: '#000000',
  },
}

SCSS

$custom: #3671cd;
$custom-light: #8199dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3671cd",
  "rgb": {
    "r": 54,
    "g": 113,
    "b": 205
  },
  "hsl": {
    "h": 216.556,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55777,
    "c": 0.15529,
    "h": 259.1
  },
  "luminance": 0.17002
}

Semantic roles & 50–950 ramp

primary

#3671CD

secondary

#D1B78E

accent

#A544E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3671CD

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

Preview Lab → · Contrast checker → · Palette generator →