#3772DA#3772DA

#3772DA is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.9% C 0.171 H 260.8°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#3772DA
RGB	rgb(55, 114, 218)
HSL	hsl(218, 69%, 54%)
HSV	hsv(218, 75%, 85%)
CMYK	cmyk(74.8%, 47.7%, 0%, 14.5%)
CIE-LAB	lab(49.38, 16.77, -58.81)
CIE-LCH	lch(49.38, 61.16, 285.92°)
OKLab	oklab(56.91% -0.0274 -0.1689)
OKLCH	oklch(56.91% 0.171 260.8)
XYZ	xyz(20.2432, 17.9065, 68.7055)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3772DA #DA9F37

analogous

#37C3DA #3772DA #4D37DA

triadic

#3772DA #DA3772 #72DA37

tetradic

#3772DA #DA37C3 #DA9F37 #37DA4D

square

#3772DA #DA37C3 #DA9F37 #37DA4D

split-complementary

#3772DA #DA4D37 #C3DA37

monochromatic

#183D7F #2156B3 #3772DA #6B96E4 #9EBBED

Accessibility & contrast

On white

4.58

#3772DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3772DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3772DA

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3772DA	#FFFFFF	#000000	##000000
##3772DA	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#387DDE

Deuteranopia (green-blind)

#006ED8

Tritanopia (blue-blind)

#008B9B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3772da;
/* rgb */ color: rgb(55, 114, 218);
/* oklch */ color: oklch(56.9% 0.171 260.8);

Tailwind

colors: {
  custom: {
    50: '#8499e6',
    500: '#3772da',
    950: '#000000',
  },
}

SCSS

$custom: #3772da;
$custom-light: #8499e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3772da",
  "rgb": {
    "r": 55,
    "g": 114,
    "b": 218
  },
  "hsl": {
    "h": 218.282,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.5691,
    "c": 0.17111,
    "h": 260.8
  },
  "luminance": 0.17909
}

Semantic roles & 50–950 ramp

primary

#3772DA

secondary

#D9C093

accent

#AC3CEC

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #3772DA

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

Preview Lab → · Contrast checker → · Palette generator →