#3769BA#3769BA

#3769BA is a mid, vivid blue. Relative luminance 0.145; OKLCH L 52.8% C 0.139 H 259.6°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3769BA
RGB	rgb(55, 105, 186)
HSL	hsl(217, 54%, 47%)
HSV	hsv(217, 70%, 73%)
CMYK	cmyk(70.4%, 43.5%, 0%, 27.1%)
CIE-LAB	lab(44.88, 10.66, -47.68)
CIE-LCH	lch(44.88, 48.86, 282.60°)
OKLab	oklab(52.81% -0.025 -0.1363)
OKLCH	oklch(52.81% 0.139 259.6)
XYZ	xyz(15.4869, 14.4589, 48.4195)
Luminance	0.1446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769BA #BA8837

analogous

#37ABBA #3769BA #4637BA

triadic

#3769BA #BA3769 #69BA37

tetradic

#3769BA #BA37AB #BA8837 #37BA46

square

#3769BA #BA37AB #BA8837 #37BA46

split-complementary

#3769BA #BA4637 #ABBA37

monochromatic

#1B345C #294E8B #3769BA #5F8AD0 #8EACDE

Accessibility & contrast

On white

5.40

#3769BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#3769BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769BA

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769BA	#FFFFFF	#000000	##FFFFFF
##3769BA	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4271BD

Deuteranopia (green-blind)

#2B65B8

Tritanopia (blue-blind)

#007C88

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3769ba;
/* rgb */ color: rgb(55, 105, 186);
/* oklch */ color: oklch(52.8% 0.139 259.6);

Tailwind

colors: {
  custom: {
    50: '#7d93cf',
    500: '#3769ba',
    950: '#000000',
  },
}

SCSS

$custom: #3769ba;
$custom-light: #7d93cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3769ba",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 186
  },
  "hsl": {
    "h": 217.099,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.52811,
    "c": 0.13859,
    "h": 259.6
  },
  "luminance": 0.14461
}

Semantic roles & 50–950 ramp

primary

#3769BA

secondary

#C8AE85

accent

#A54ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3769BA

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

Preview Lab → · Contrast checker → · Palette generator →