#3725B3#3725B3

#3725B3 is a dark, highly saturated blue. Relative luminance 0.054; OKLCH L 40.0% C 0.208 H 277.1°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#3725B3
RGB	rgb(55, 37, 179)
HSL	hsl(248, 66%, 42%)
HSV	hsv(248, 79%, 70%)
CMYK	cmyk(69.3%, 79.3%, 0%, 29.8%)
CIE-LAB	lab(27.82, 50.07, -71.34)
CIE-LCH	lch(27.82, 87.16, 305.06°)
OKLab	oklab(39.99% 0.0257 -0.2062)
OKLCH	oklch(39.99% 0.208 277.1)
XYZ	xyz(10.3712, 5.3891, 43.1327)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3725B3 #A1B325

analogous

#255AB3 #3725B3 #7E25B3

triadic

#3725B3 #B33725 #25B337

tetradic

#3725B3 #B3255A #A1B325 #25B37E

square

#3725B3 #B3255A #A1B325 #25B37E

split-complementary

#3725B3 #B37E25 #5AB325

monochromatic

#18104E #271B80 #3725B3 #513ED7 #7F71E2

Accessibility & contrast

On white

10.11

#3725B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3725B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3725B3

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3725B3	#FFFFFF	#000000	##FFFFFF
##3725B3	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B7

Deuteranopia (green-blind)

#003CB1

Tritanopia (blue-blind)

#00506C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3725b3;
/* rgb */ color: rgb(55, 37, 179);
/* oklch */ color: oklch(40.0% 0.208 277.1);

Tailwind

colors: {
  custom: {
    50: '#8064cb',
    500: '#3725b3',
    950: '#000000',
  },
}

SCSS

$custom: #3725b3;
$custom-light: #8064cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3725b3",
  "rgb": {
    "r": 55,
    "g": 37,
    "b": 179
  },
  "hsl": {
    "h": 247.606,
    "s": 65.741,
    "l": 42.353
  },
  "oklch": {
    "l": 0.3999,
    "c": 0.20775,
    "h": 277.1
  },
  "luminance": 0.0539
}

Semantic roles & 50–950 ramp

primary

#3725B3

secondary

#BDC86B

accent

#E93FD3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3725B3

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

Preview Lab → · Contrast checker → · Palette generator →