#3755AA#3755AA

#3755AA is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.4% C 0.141 H 266.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3755AA
RGB	rgb(55, 85, 170)
HSL	hsl(224, 51%, 44%)
HSV	hsv(224, 68%, 67%)
CMYK	cmyk(67.6%, 50%, 0%, 33.3%)
CIE-LAB	lab(38.22, 17.67, -48.99)
CIE-LCH	lch(38.22, 52.08, 289.84°)
OKLab	oklab(47.37% -0.0087 -0.1405)
OKLCH	oklch(47.37% 0.141 266.4)
XYZ	xyz(12.0772, 10.2103, 39.3567)
Luminance	0.1021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755AA #AA8C37

analogous

#378FAA #3755AA #5337AA

triadic

#3755AA #AA3755 #55AA37

tetradic

#3755AA #AA378F #AA8C37 #37AA53

square

#3755AA #AA378F #AA8C37 #37AA53

split-complementary

#3755AA #AA5337 #8FAA37

monochromatic

#19274E #283E7C #3755AA #5674C8 #849AD7

Accessibility & contrast

On white

6.90

#3755AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3755AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755AA

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755AA	#FFFFFF	#000000	##FFFFFF
##3755AA	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#265FAD

Deuteranopia (green-blind)

#0255A8

Tritanopia (blue-blind)

#006977

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3755aa;
/* rgb */ color: rgb(55, 85, 170);
/* oklch */ color: oklch(47.4% 0.141 266.4);

Tailwind

colors: {
  custom: {
    50: '#7b84c4',
    500: '#3755aa',
    950: '#000000',
  },
}

SCSS

$custom: #3755aa;
$custom-light: #7b84c4;
$custom-dark: #000000;

JSON

{
  "hex": "#3755aa",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 170
  },
  "hsl": {
    "h": 224.348,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.47371,
    "c": 0.14075,
    "h": 266.4
  },
  "luminance": 0.10212
}

Semantic roles & 50–950 ramp

primary

#3755AA

secondary

#C1AF7C

accent

#B64DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3755AA

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

Preview Lab → · Contrast checker → · Palette generator →