#3752B7#3752B7

#3752B7 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.7% C 0.163 H 268.3°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#3752B7
RGB	rgb(55, 82, 183)
HSL	hsl(227, 54%, 47%)
HSV	hsv(227, 70%, 72%)
CMYK	cmyk(69.9%, 55.2%, 0%, 28.2%)
CIE-LAB	lab(38.31, 24.41, -56.51)
CIE-LCH	lch(38.31, 61.56, 293.36°)
OKLab	oklab(47.73% -0.0049 -0.1627)
OKLCH	oklch(47.73% 0.163 268.3)
XYZ	xyz(13.1371, 10.2644, 46.0795)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3752B7 #B79C37

analogous

#3792B7 #3752B7 #5C37B7

triadic

#3752B7 #B73752 #52B737

tetradic

#3752B7 #B73792 #B79C37 #37B75C

square

#3752B7 #B73792 #B79C37 #37B75C

split-complementary

#3752B7 #B75C37 #92B737

monochromatic

#1B2859 #293D88 #3752B7 #5D75CE #8C9DDC

Accessibility & contrast

On white

6.88

#3752B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3752B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3752B7

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3752B7	#FFFFFF	#000000	##FFFFFF
##3752B7	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BA

Deuteranopia (green-blind)

#0055B5

Tritanopia (blue-blind)

#006A7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3752b7;
/* rgb */ color: rgb(55, 82, 183);
/* oklch */ color: oklch(47.7% 0.163 268.3);

Tailwind

colors: {
  custom: {
    50: '#7e82cd',
    500: '#3752b7',
    950: '#000000',
  },
}

SCSS

$custom: #3752b7;
$custom-light: #7e82cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3752b7",
  "rgb": {
    "r": 55,
    "g": 82,
    "b": 183
  },
  "hsl": {
    "h": 227.344,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.47734,
    "c": 0.16274,
    "h": 268.3
  },
  "luminance": 0.10266
}

Semantic roles & 50–950 ramp

primary

#3752B7

secondary

#C7B983

accent

#BE4BDD

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3752B7

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

Preview Lab → · Contrast checker → · Palette generator →