#3764B9#3764B9

#3764B9 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.6% C 0.143 H 261.8°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3764B9
RGB	rgb(55, 100, 185)
HSL	hsl(219, 54%, 47%)
HSV	hsv(219, 70%, 73%)
CMYK	cmyk(70.3%, 45.9%, 0%, 27.5%)
CIE-LAB	lab(43.40, 13.48, -49.48)
CIE-LCH	lch(43.40, 51.28, 285.24°)
OKLab	oklab(51.65% -0.0205 -0.1417)
OKLCH	oklch(51.65% 0.143 261.8)
XYZ	xyz(14.8866, 13.4278, 47.6968)
Luminance	0.1343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3764B9 #B98C37

analogous

#37A5B9 #3764B9 #4B37B9

triadic

#3764B9 #B93764 #64B937

tetradic

#3764B9 #B937A5 #B98C37 #37B94B

square

#3764B9 #B937A5 #B98C37 #37B94B

split-complementary

#3764B9 #B94B37 #A5B937

monochromatic

#1B315B #294A8A #3764B9 #5E85CF #8DA9DD

Accessibility & contrast

On white

5.70

#3764B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3764B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3764B9

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3764B9	#FFFFFF	#000000	##FFFFFF
##3764B9	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396DBC

Deuteranopia (green-blind)

#1E61B7

Tritanopia (blue-blind)

#007885

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3764b9;
/* rgb */ color: rgb(55, 100, 185);
/* oklch */ color: oklch(51.6% 0.143 261.8);

Tailwind

colors: {
  custom: {
    50: '#7d8fce',
    500: '#3764b9',
    950: '#000000',
  },
}

SCSS

$custom: #3764b9;
$custom-light: #7d8fce;
$custom-dark: #000000;

JSON

{
  "hex": "#3764b9",
  "rgb": {
    "r": 55,
    "g": 100,
    "b": 185
  },
  "hsl": {
    "h": 219.231,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.51648,
    "c": 0.14316,
    "h": 261.8
  },
  "luminance": 0.13429
}

Semantic roles & 50–950 ramp

primary

#3764B9

secondary

#C8B084

accent

#AB4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3764B9

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

Preview Lab → · Contrast checker → · Palette generator →