#3769CB#3769CB

#3769CB is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.0% C 0.162 H 262.1°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3769CB
RGB	rgb(55, 105, 203)
HSL	hsl(220, 59%, 51%)
HSV	hsv(220, 73%, 80%)
CMYK	cmyk(72.9%, 48.3%, 0%, 20.4%)
CIE-LAB	lab(45.94, 16.93, -55.80)
CIE-LCH	lch(45.94, 58.32, 286.88°)
OKLab	oklab(53.96% -0.0222 -0.1602)
OKLCH	oklch(53.96% 0.162 262.1)
XYZ	xyz(17.4028, 15.2253, 58.5099)
Luminance	0.1523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769CB #CB9937

analogous

#37B3CB #3769CB #4F37CB

triadic

#3769CB #CB3769 #69CB37

tetradic

#3769CB #CB37B3 #CB9937 #37CB4F

square

#3769CB #CB37B3 #CB9937 #37CB4F

split-complementary

#3769CB #CB4F37 #B3CB37

monochromatic

#1C376C #29509C #3769CB #688DD8 #98B2E4

Accessibility & contrast

On white

5.19

#3769CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#3769CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769CB

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769CB	#FFFFFF	#000000	##FFFFFF
##3769CB	1.00	5.19	4.05	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3274CF

Deuteranopia (green-blind)

#0066C9

Tritanopia (blue-blind)

#008090

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3769cb;
/* rgb */ color: rgb(55, 105, 203);
/* oklch */ color: oklch(54.0% 0.162 262.1);

Tailwind

colors: {
  custom: {
    50: '#8193db',
    500: '#3769cb',
    950: '#000000',
  },
}

SCSS

$custom: #3769cb;
$custom-light: #8193db;
$custom-dark: #000000;

JSON

{
  "hex": "#3769cb",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 203
  },
  "hsl": {
    "h": 219.73,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.53964,
    "c": 0.16173,
    "h": 262.1
  },
  "luminance": 0.15227
}

Semantic roles & 50–950 ramp

primary

#3769CB

secondary

#D0BA8E

accent

#AD46E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3769CB

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

Preview Lab → · Contrast checker → · Palette generator →