#3755BE#3755BE

#3755BE is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.9% C 0.169 H 267.6°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3755BE
RGB	rgb(55, 85, 190)
HSL	hsl(227, 55%, 48%)
HSV	hsv(227, 71%, 75%)
CMYK	cmyk(71.1%, 55.3%, 0%, 25.5%)
CIE-LAB	lab(39.62, 25.02, -58.49)
CIE-LCH	lch(39.62, 63.62, 293.16°)
OKLab	oklab(48.88% -0.0069 -0.1684)
OKLCH	oklch(48.88% 0.169 267.6)
XYZ	xyz(14.1151, 11.0255, 50.0895)
Luminance	0.1103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755BE #BEA037

analogous

#3798BE #3755BE #5D37BE

triadic

#3755BE #BE3755 #55BE37

tetradic

#3755BE #BE3798 #BEA037 #37BE5D

square

#3755BE #BE3798 #BEA037 #37BE5D

split-complementary

#3755BE #BE5D37 #98BE37

monochromatic

#1C2B5F #29408F #3755BE #617AD1 #90A2DF

Accessibility & contrast

On white

6.55

#3755BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3755BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755BE

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755BE	#FFFFFF	#000000	##FFFFFF
##3755BE	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C2

Deuteranopia (green-blind)

#0057BC

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3755be;
/* rgb */ color: rgb(55, 85, 190);
/* oklch */ color: oklch(48.9% 0.169 267.6);

Tailwind

colors: {
  custom: {
    50: '#7f84d2',
    500: '#3755be',
    950: '#000000',
  },
}

SCSS

$custom: #3755be;
$custom-light: #7f84d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3755be",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 190
  },
  "hsl": {
    "h": 226.667,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.48882,
    "c": 0.16857,
    "h": 267.6
  },
  "luminance": 0.11027
}

Semantic roles & 50–950 ramp

primary

#3755BE

secondary

#CABB87

accent

#BD49DE

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3755BE

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

Preview Lab → · Contrast checker → · Palette generator →