#3646BB#3646BB

#3646BB is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.7% C 0.183 H 271.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#3646BB
RGB	rgb(54, 70, 187)
HSL	hsl(233, 55%, 47%)
HSV	hsv(233, 71%, 73%)
CMYK	cmyk(71.1%, 62.6%, 0%, 26.7%)
CIE-LAB	lab(35.50, 33.48, -63.45)
CIE-LCH	lch(35.50, 71.74, 297.82°)
OKLab	oklab(45.72% 0.0036 -0.1832)
OKLCH	oklch(45.72% 0.183 271.1)
XYZ	xyz(12.6781, 8.7512, 48.0251)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.52

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3646BB #BBAB36

analogous

#3689BB #3646BB #6936BB

triadic

#3646BB #BB3646 #46BB36

tetradic

#3646BB #BB3689 #BBAB36 #36BB69

square

#3646BB #BB3689 #BBAB36 #36BB69

split-complementary

#3646BB #BB6936 #89BB36

monochromatic

#1B225C #28348C #3646BB #5E6CD0 #8D97DE

Accessibility & contrast

On white

7.64

#3646BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3646BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3646BB

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3646BB	#FFFFFF	#000000	##FFFFFF
##3646BB	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#004DB9

Tritanopia (blue-blind)

#00647A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3646bb;
/* rgb */ color: rgb(54, 70, 187);
/* oklch */ color: oklch(45.7% 0.183 271.1);

Tailwind

colors: {
  custom: {
    50: '#7f79d0',
    500: '#3646bb',
    950: '#000000',
  },
}

SCSS

$custom: #3646bb;
$custom-light: #7f79d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3646bb",
  "rgb": {
    "r": 54,
    "g": 70,
    "b": 187
  },
  "hsl": {
    "h": 232.782,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.45724,
    "c": 0.18323,
    "h": 271.1
  },
  "luminance": 0.08752
}

Semantic roles & 50–950 ramp

primary

#3646BB

secondary

#C9C084

accent

#CD49DF

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3646BB

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

Preview Lab → · Contrast checker → · Palette generator →