#3647B7#3647B7

#3647B7 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.6% C 0.177 H 270.9°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3647B7
RGB	rgb(54, 71, 183)
HSL	hsl(232, 54%, 46%)
HSV	hsv(232, 70%, 72%)
CMYK	cmyk(70.5%, 61.2%, 0%, 28.2%)
CIE-LAB	lab(35.42, 31.41, -61.23)
CIE-LCH	lch(35.42, 68.82, 297.16°)
OKLab	oklab(45.56% 0.0029 -0.1767)
OKLCH	oklch(45.56% 0.177 270.9)
XYZ	xyz(12.3189, 8.7084, 45.8222)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3647B7 #B7A636

analogous

#3688B7 #3647B7 #6636B7

triadic

#3647B7 #B73647 #47B736

tetradic

#3647B7 #B73688 #B7A636 #36B766

square

#3647B7 #B73688 #B7A636 #36B766

split-complementary

#3647B7 #B76636 #88B736

monochromatic

#1A2258 #283588 #3647B7 #5B6BCF #8B96DD

Accessibility & contrast

On white

7.66

#3647B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3647B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3647B7

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3647B7	#FFFFFF	#000000	##FFFFFF
##3647B7	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BB

Deuteranopia (green-blind)

#004DB5

Tritanopia (blue-blind)

#006378

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3647b7;
/* rgb */ color: rgb(54, 71, 183);
/* oklch */ color: oklch(45.6% 0.177 270.9);

Tailwind

colors: {
  custom: {
    50: '#7e7acd',
    500: '#3647b7',
    950: '#000000',
  },
}

SCSS

$custom: #3647b7;
$custom-light: #7e7acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3647b7",
  "rgb": {
    "r": 54,
    "g": 71,
    "b": 183
  },
  "hsl": {
    "h": 232.093,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.45559,
    "c": 0.1767,
    "h": 270.9
  },
  "luminance": 0.0871
}

Semantic roles & 50–950 ramp

primary

#3647B7

secondary

#C7BE82

accent

#CA4ADE

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3647B7

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

Preview Lab → · Contrast checker → · Palette generator →