#3769B5#3769B5

#3769B5 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.5% C 0.132 H 258.6°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#3769B5
RGB	rgb(55, 105, 181)
HSL	hsl(216, 53%, 46%)
HSV	hsv(216, 70%, 71%)
CMYK	cmyk(69.6%, 42%, 0%, 29%)
CIE-LAB	lab(44.59, 8.83, -45.25)
CIE-LCH	lch(44.59, 46.10, 281.04°)
OKLab	oklab(52.49% -0.026 -0.1292)
OKLCH	oklch(52.49% 0.132 258.6)
XYZ	xyz(14.9646, 14.2500, 45.6690)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769B5 #B58337

analogous

#37A8B5 #3769B5 #4437B5

triadic

#3769B5 #B53769 #69B537

tetradic

#3769B5 #B537A8 #B58337 #37B544

square

#3769B5 #B537A8 #B58337 #37B544

split-complementary

#3769B5 #B54437 #A8B537

monochromatic

#1A3357 #294E86 #3769B5 #5C89CD #8BABDC

Accessibility & contrast

On white

5.45

#3769B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#3769B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769B5

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769B5	#FFFFFF	#000000	##FFFFFF
##3769B5	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4570B8

Deuteranopia (green-blind)

#3164B3

Tritanopia (blue-blind)

#007B86

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #3769b5;
/* rgb */ color: rgb(55, 105, 181);
/* oklch */ color: oklch(52.5% 0.132 258.6);

Tailwind

colors: {
  custom: {
    50: '#7c93cb',
    500: '#3769b5',
    950: '#000000',
  },
}

SCSS

$custom: #3769b5;
$custom-light: #7c93cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3769b5",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 181
  },
  "hsl": {
    "h": 216.19,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52488,
    "c": 0.13175,
    "h": 258.6
  },
  "luminance": 0.14252
}

Semantic roles & 50–950 ramp

primary

#3769B5

secondary

#C6AB82

accent

#A34BDD

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3769B5

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

Preview Lab → · Contrast checker → · Palette generator →