#3651BE#3651BE

#3651BE is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.0% C 0.174 H 268.5°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#3651BE
RGB	rgb(54, 81, 190)
HSL	hsl(228, 56%, 48%)
HSV	hsv(228, 72%, 75%)
CMYK	cmyk(71.6%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(38.53, 27.48, -60.28)
CIE-LCH	lch(38.53, 66.25, 294.51°)
OKLab	oklab(48.05% -0.0047 -0.1738)
OKLCH	oklch(48.05% 0.174 268.5)
XYZ	xyz(13.7548, 10.3854, 49.9849)
Luminance	0.1039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3651BE #BEA336

analogous

#3695BE #3651BE #5F36BE

triadic

#3651BE #BE3651 #51BE36

tetradic

#3651BE #BE3695 #BEA336 #36BE5F

square

#3651BE #BE3695 #BEA336 #36BE5F

split-complementary

#3651BE #BE5F36 #95BE36

monochromatic

#1B285F #283D8E #3651BE #6076D2 #8F9FDF

Accessibility & contrast

On white

6.82

#3651BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3651BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3651BE

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3651BE	#FFFFFF	#000000	##FFFFFF
##3651BE	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C2

Deuteranopia (green-blind)

#0055BC

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3651be;
/* rgb */ color: rgb(54, 81, 190);
/* oklch */ color: oklch(48.0% 0.174 268.5);

Tailwind

colors: {
  custom: {
    50: '#7f81d2',
    500: '#3651be',
    950: '#000000',
  },
}

SCSS

$custom: #3651be;
$custom-light: #7f81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3651be",
  "rgb": {
    "r": 54,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 228.088,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.48046,
    "c": 0.17382,
    "h": 268.5
  },
  "luminance": 0.10387
}

Semantic roles & 50–950 ramp

primary

#3651BE

secondary

#CABC86

accent

#C149DF

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3651BE

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

Preview Lab → · Contrast checker → · Palette generator →