#3755A8#3755A8

#3755A8 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.2% C 0.138 H 266.3°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#3755A8
RGB	rgb(55, 85, 168)
HSL	hsl(224, 51%, 44%)
HSV	hsv(224, 67%, 66%)
CMYK	cmyk(67.3%, 49.4%, 0%, 34.1%)
CIE-LAB	lab(38.08, 16.94, -48.02)
CIE-LCH	lch(38.08, 50.92, 289.43°)
OKLab	oklab(47.23% -0.009 -0.1376)
OKLCH	oklch(47.23% 0.138 266.3)
XYZ	xyz(11.8895, 10.1352, 38.3679)
Luminance	0.1014 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755A8 #A88A37

analogous

#378DA8 #3755A8 #5137A8

triadic

#3755A8 #A83755 #55A837

tetradic

#3755A8 #A8378D #A88A37 #37A851

square

#3755A8 #A8378D #A88A37 #37A851

split-complementary

#3755A8 #A85137 #8DA837

monochromatic

#19264C #283E7A #3755A8 #5573C7 #8399D6

Accessibility & contrast

On white

6.94

#3755A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3755A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755A8

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755A8	#FFFFFF	#000000	##FFFFFF
##3755A8	1.00	6.94	3.03	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#285FAB

Deuteranopia (green-blind)

#0A55A6

Tritanopia (blue-blind)

#006876

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3755a8;
/* rgb */ color: rgb(55, 85, 168);
/* oklch */ color: oklch(47.2% 0.138 266.3);

Tailwind

colors: {
  custom: {
    50: '#7a84c2',
    500: '#3755a8',
    950: '#000000',
  },
}

SCSS

$custom: #3755a8;
$custom-light: #7a84c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3755a8",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 168
  },
  "hsl": {
    "h": 224.071,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.47227,
    "c": 0.13791,
    "h": 266.3
  },
  "luminance": 0.10136
}

Semantic roles & 50–950 ramp

primary

#3755A8

secondary

#C0AE7B

accent

#B54EDA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3755A8

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

Preview Lab → · Contrast checker → · Palette generator →