#3769B3#3769B3

#3769B3 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.4% C 0.129 H 258.2°. Best body text is #FFFFFF at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3769B3
RGB	rgb(55, 105, 179)
HSL	hsl(216, 53%, 46%)
HSV	hsv(216, 69%, 70%)
CMYK	cmyk(69.3%, 41.3%, 0%, 29.8%)
CIE-LAB	lab(44.47, 8.10, -44.26)
CIE-LCH	lch(44.47, 45.00, 280.37°)
OKLab	oklab(52.36% -0.0264 -0.1263)
OKLCH	oklch(52.36% 0.129 258.2)
XYZ	xyz(14.7609, 14.1685, 44.5960)
Luminance	0.1417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769B3 #B38137

analogous

#37A7B3 #3769B3 #4337B3

triadic

#3769B3 #B33769 #69B337

tetradic

#3769B3 #B337A7 #B38137 #37B343

square

#3769B3 #B337A7 #B38137 #37B343

split-complementary

#3769B3 #B34337 #A7B337

monochromatic

#1A3255 #294E84 #3769B3 #5B89CD #8AAADB

Accessibility & contrast

On white

5.48

#3769B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.83

#3769B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769B3

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769B3	#FFFFFF	#000000	##FFFFFF
##3769B3	1.00	5.48	3.83	5.48
#FFFFFF	5.48	1.00	21.00	1.00
#000000	3.83	21.00	1.00	21.00
##FFFFFF	5.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#476FB6

Deuteranopia (green-blind)

#3364B1

Tritanopia (blue-blind)

#007A85

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3769b3;
/* rgb */ color: rgb(55, 105, 179);
/* oklch */ color: oklch(52.4% 0.129 258.2);

Tailwind

colors: {
  custom: {
    50: '#7c93ca',
    500: '#3769b3',
    950: '#000000',
  },
}

SCSS

$custom: #3769b3;
$custom-light: #7c93ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3769b3",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 179
  },
  "hsl": {
    "h": 215.806,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52361,
    "c": 0.12901,
    "h": 258.2
  },
  "luminance": 0.1417
}

Semantic roles & 50–950 ramp

primary

#3769B3

secondary

#C5AA81

accent

#A24BDC

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3769B3

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

Preview Lab → · Contrast checker → · Palette generator →