#3755AC#3755AC

#3755AC is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.5% C 0.144 H 266.6°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#3755AC
RGB	rgb(55, 85, 172)
HSL	hsl(225, 52%, 45%)
HSV	hsv(225, 68%, 67%)
CMYK	cmyk(68%, 50.6%, 0%, 32.5%)
CIE-LAB	lab(38.35, 18.41, -49.96)
CIE-LCH	lch(38.35, 53.24, 290.23°)
OKLab	oklab(47.52% -0.0085 -0.1433)
OKLCH	oklch(47.52% 0.144 266.6)
XYZ	xyz(12.2679, 10.2866, 40.3607)
Luminance	0.1029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755AC #AC8E37

analogous

#3790AC #3755AC #5337AC

triadic

#3755AC #AC3755 #55AC37

tetradic

#3755AC #AC3790 #AC8E37 #37AC53

square

#3755AC #AC3790 #AC8E37 #37AC53

split-complementary

#3755AC #AC5337 #90AC37

monochromatic

#19274F #283E7E #3755AC #5774C9 #859BD8

Accessibility & contrast

On white

6.87

#3755AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3755AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755AC

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755AC	#FFFFFF	#000000	##FFFFFF
##3755AC	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2360AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3755ac;
/* rgb */ color: rgb(55, 85, 172);
/* oklch */ color: oklch(47.5% 0.144 266.6);

Tailwind

colors: {
  custom: {
    50: '#7b84c5',
    500: '#3755ac',
    950: '#000000',
  },
}

SCSS

$custom: #3755ac;
$custom-light: #7b84c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3755ac",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 172
  },
  "hsl": {
    "h": 224.615,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.47517,
    "c": 0.14358,
    "h": 266.6
  },
  "luminance": 0.10288
}

Semantic roles & 50–950 ramp

primary

#3755AC

secondary

#C2B07D

accent

#B74DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3755AC

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

Preview Lab → · Contrast checker → · Palette generator →