#3729A2#3729A2

#3729A2 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.7% C 0.184 H 278.7°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#3729A2
RGB	rgb(55, 41, 162)
HSL	hsl(247, 60%, 40%)
HSV	hsv(247, 75%, 64%)
CMYK	cmyk(66%, 74.7%, 0%, 36.5%)
CIE-LAB	lab(26.75, 42.67, -62.87)
CIE-LCH	lch(26.75, 75.98, 304.17°)
OKLab	oklab(38.71% 0.0277 -0.1815)
OKLCH	oklch(38.71% 0.184 278.7)
XYZ	xyz(8.8880, 5.0060, 34.6733)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3729A2 #94A229

analogous

#2958A2 #3729A2 #7329A2

triadic

#3729A2 #A23729 #29A237

tetradic

#3729A2 #A22958 #94A229 #29A273

square

#3729A2 #A22958 #94A229 #29A273

split-complementary

#3729A2 #A27329 #58A229

monochromatic

#161040 #261D71 #3729A2 #4C3BCD #786CDA

Accessibility & contrast

On white

10.49

#3729A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#3729A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3729A2

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3729A2	#FFFFFF	#000000	##FFFFFF
##3729A2	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A6

Deuteranopia (green-blind)

#003AA0

Tritanopia (blue-blind)

#004B63

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3729a2;
/* rgb */ color: rgb(55, 41, 162);
/* oklch */ color: oklch(38.7% 0.184 278.7);

Tailwind

colors: {
  custom: {
    50: '#7d65bf',
    500: '#3729a2',
    950: '#000000',
  },
}

SCSS

$custom: #3729a2;
$custom-light: #7d65bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3729a2",
  "rgb": {
    "r": 55,
    "g": 41,
    "b": 162
  },
  "hsl": {
    "h": 246.942,
    "s": 59.606,
    "l": 39.804
  },
  "oklch": {
    "l": 0.3871,
    "c": 0.18361,
    "h": 278.7
  },
  "luminance": 0.05007
}

Semantic roles & 50–950 ramp

primary

#3729A2

secondary

#B6C067

accent

#E345D1

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #3729A2

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

Preview Lab → · Contrast checker → · Palette generator →