#3752BC#3752BC

#3752BC is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.1% C 0.170 H 268.4°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3752BC
RGB	rgb(55, 82, 188)
HSL	hsl(228, 55%, 48%)
HSV	hsv(228, 71%, 74%)
CMYK	cmyk(70.7%, 56.4%, 0%, 26.3%)
CIE-LAB	lab(38.68, 26.24, -58.85)
CIE-LCH	lch(38.68, 64.43, 294.03°)
OKLab	oklab(48.13% -0.0046 -0.1695)
OKLCH	oklch(48.13% 0.17 268.4)
XYZ	xyz(13.6668, 10.4763, 48.8691)
Luminance	0.1048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3752BC #BCA137

analogous

#3794BC #3752BC #5F37BC

triadic

#3752BC #BC3752 #52BC37

tetradic

#3752BC #BC3794 #BCA137 #37BC5F

square

#3752BC #BC3794 #BCA137 #37BC5F

split-complementary

#3752BC #BC5F37 #94BC37

monochromatic

#1B295D #293D8D #3752BC #6077D0 #8F9FDE

Accessibility & contrast

On white

6.78

#3752BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3752BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3752BC

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3752BC	#FFFFFF	#000000	##FFFFFF
##3752BC	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0055BA

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3752bc;
/* rgb */ color: rgb(55, 82, 188);
/* oklch */ color: oklch(48.1% 0.170 268.4);

Tailwind

colors: {
  custom: {
    50: '#7f82d1',
    500: '#3752bc',
    950: '#000000',
  },
}

SCSS

$custom: #3752bc;
$custom-light: #7f82d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3752bc",
  "rgb": {
    "r": 55,
    "g": 82,
    "b": 188
  },
  "hsl": {
    "h": 227.82,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.4813,
    "c": 0.16958,
    "h": 268.4
  },
  "luminance": 0.10478
}

Semantic roles & 50–950 ramp

primary

#3752BC

secondary

#C9BB86

accent

#C04ADE

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3752BC

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

Preview Lab → · Contrast checker → · Palette generator →