#3725B7#3725B7

#3725B7 is a dark, highly saturated blue. Relative luminance 0.056; OKLCH L 40.4% C 0.212 H 276.6°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#3725B7
RGB	rgb(55, 37, 183)
HSL	hsl(247, 66%, 43%)
HSV	hsv(247, 80%, 72%)
CMYK	cmyk(69.9%, 79.8%, 0%, 28.2%)
CIE-LAB	lab(28.26, 51.28, -73.00)
CIE-LCH	lch(28.26, 89.21, 305.09°)
OKLab	oklab(40.43% 0.0246 -0.211)
OKLCH	oklch(40.43% 0.212 276.6)
XYZ	xyz(10.7816, 5.5533, 45.2943)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3725B7 #A5B725

analogous

#255CB7 #3725B7 #8025B7

triadic

#3725B7 #B73725 #25B737

tetradic

#3725B7 #B7255C #A5B725 #25B780

square

#3725B7 #B7255C #A5B725 #25B780

split-complementary

#3725B7 #B78025 #5CB725

monochromatic

#181051 #281B84 #3725B7 #5341D9 #8174E3

Accessibility & contrast

On white

9.95

#3725B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3725B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3725B7

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3725B7	#FFFFFF	#000000	##FFFFFF
##3725B7	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BB

Deuteranopia (green-blind)

#003CB4

Tritanopia (blue-blind)

#00526E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3725b7;
/* rgb */ color: rgb(55, 37, 183);
/* oklch */ color: oklch(40.4% 0.212 276.6);

Tailwind

colors: {
  custom: {
    50: '#8164ce',
    500: '#3725b7',
    950: '#000000',
  },
}

SCSS

$custom: #3725b7;
$custom-light: #8164ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3725b7",
  "rgb": {
    "r": 55,
    "g": 37,
    "b": 183
  },
  "hsl": {
    "h": 247.397,
    "s": 66.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.40426,
    "c": 0.2124,
    "h": 276.6
  },
  "luminance": 0.05554
}

Semantic roles & 50–950 ramp

primary

#3725B7

secondary

#BFCA6E

accent

#E93FD4

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #3725B7

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

Preview Lab → · Contrast checker → · Palette generator →