#3769BC#3769BC

#3769BC is a mid, vivid blue. Relative luminance 0.145; OKLCH L 52.9% C 0.141 H 260.0°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3769BC
RGB	rgb(55, 105, 188)
HSL	hsl(217, 55%, 48%)
HSV	hsv(217, 71%, 74%)
CMYK	cmyk(70.7%, 44.1%, 0%, 26.3%)
CIE-LAB	lab(45.00, 11.40, -48.65)
CIE-LCH	lch(45.00, 49.97, 283.19°)
OKLab	oklab(52.94% -0.0246 -0.1392)
OKLCH	oklch(52.94% 0.141 260)
XYZ	xyz(15.7010, 14.5446, 49.5471)
Luminance	0.1455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769BC #BC8A37

analogous

#37ABBC #3769BC #4837BC

triadic

#3769BC #BC3769 #69BC37

tetradic

#3769BC #BC37AB #BC8A37 #37BC48

square

#3769BC #BC37AB #BC8A37 #37BC48

split-complementary

#3769BC #BC4837 #ABBC37

monochromatic

#1B345D #294F8D #3769BC #608AD0 #8FADDE

Accessibility & contrast

On white

5.37

#3769BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3769BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769BC

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769BC	#FFFFFF	#000000	##FFFFFF
##3769BC	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4071BF

Deuteranopia (green-blind)

#2865BA

Tritanopia (blue-blind)

#007C89

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3769bc;
/* rgb */ color: rgb(55, 105, 188);
/* oklch */ color: oklch(52.9% 0.141 260.0);

Tailwind

colors: {
  custom: {
    50: '#7e93d1',
    500: '#3769bc',
    950: '#000000',
  },
}

SCSS

$custom: #3769bc;
$custom-light: #7e93d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3769bc",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 188
  },
  "hsl": {
    "h": 217.444,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.52942,
    "c": 0.14133,
    "h": 260
  },
  "luminance": 0.14546
}

Semantic roles & 50–950 ramp

primary

#3769BC

secondary

#C9B086

accent

#A64ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3769BC

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

Preview Lab → · Contrast checker → · Palette generator →