#3755AD#3755AD

#3755AD is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.6% C 0.145 H 266.7°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#3755AD
RGB	rgb(55, 85, 173)
HSL	hsl(225, 52%, 45%)
HSV	hsv(225, 68%, 68%)
CMYK	cmyk(68.2%, 50.9%, 0%, 32.2%)
CIE-LAB	lab(38.42, 18.78, -50.44)
CIE-LCH	lch(38.42, 53.82, 290.42°)
OKLab	oklab(47.59% -0.0084 -0.1447)
OKLCH	oklch(47.59% 0.145 266.7)
XYZ	xyz(12.3643, 10.3252, 40.8684)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755AD #AD8F37

analogous

#3790AD #3755AD #5437AD

triadic

#3755AD #AD3755 #55AD37

tetradic

#3755AD #AD3790 #AD8F37 #37AD54

square

#3755AD #AD3790 #AD8F37 #37AD54

split-complementary

#3755AD #AD5437 #90AD37

monochromatic

#192750 #283E7F #3755AD #5775CA #869BD8

Accessibility & contrast

On white

6.85

#3755AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3755AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755AD

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755AD	#FFFFFF	#000000	##FFFFFF
##3755AD	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2260B0

Deuteranopia (green-blind)

#0055AB

Tritanopia (blue-blind)

#006A79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3755ad;
/* rgb */ color: rgb(55, 85, 173);
/* oklch */ color: oklch(47.6% 0.145 266.7);

Tailwind

colors: {
  custom: {
    50: '#7b84c6',
    500: '#3755ad',
    950: '#000000',
  },
}

SCSS

$custom: #3755ad;
$custom-light: #7b84c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3755ad",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 173
  },
  "hsl": {
    "h": 224.746,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4759,
    "c": 0.14499,
    "h": 266.7
  },
  "luminance": 0.10326
}

Semantic roles & 50–950 ramp

primary

#3755AD

secondary

#C2B17D

accent

#B74DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3755AD

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

Preview Lab → · Contrast checker → · Palette generator →