#3769B7#3769B7

#3769B7 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 52.6% C 0.134 H 259.0°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3769B7
RGB	rgb(55, 105, 183)
HSL	hsl(217, 54%, 47%)
HSV	hsv(217, 70%, 72%)
CMYK	cmyk(69.9%, 42.6%, 0%, 28.2%)
CIE-LAB	lab(44.71, 9.56, -46.22)
CIE-LCH	lch(44.71, 47.20, 281.69°)
OKLab	oklab(52.62% -0.0256 -0.132)
OKLCH	oklch(52.62% 0.134 259)
XYZ	xyz(15.1713, 14.3327, 46.7575)
Luminance	0.1433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769B7 #B78537

analogous

#37A9B7 #3769B7 #4537B7

triadic

#3769B7 #B73769 #69B737

tetradic

#3769B7 #B737A9 #B78537 #37B745

square

#3769B7 #B737A9 #B78537 #37B745

split-complementary

#3769B7 #B74537 #A9B737

monochromatic

#1B3359 #294E88 #3769B7 #5D89CE #8CABDC

Accessibility & contrast

On white

5.43

#3769B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#3769B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769B7

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769B7	#FFFFFF	#000000	##FFFFFF
##3769B7	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4470BA

Deuteranopia (green-blind)

#2E64B5

Tritanopia (blue-blind)

#007B87

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3769b7;
/* rgb */ color: rgb(55, 105, 183);
/* oklch */ color: oklch(52.6% 0.134 259.0);

Tailwind

colors: {
  custom: {
    50: '#7d93cd',
    500: '#3769b7',
    950: '#000000',
  },
}

SCSS

$custom: #3769b7;
$custom-light: #7d93cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3769b7",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 183
  },
  "hsl": {
    "h": 216.563,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.52616,
    "c": 0.13449,
    "h": 259
  },
  "luminance": 0.14334
}

Semantic roles & 50–950 ramp

primary

#3769B7

secondary

#C7AC83

accent

#A44BDD

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3769B7

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

Preview Lab → · Contrast checker → · Palette generator →