#3753DA#3753DA

#3753DA is a mid, highly saturated blue. Relative luminance 0.121; OKLCH L 50.8% C 0.208 H 268.6°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3753DA
RGB	rgb(55, 83, 218)
HSL	hsl(230, 69%, 54%)
HSV	hsv(230, 75%, 85%)
CMYK	cmyk(74.8%, 61.9%, 0%, 14.5%)
CIE-LAB	lab(41.31, 36.44, -71.92)
CIE-LCH	lch(41.31, 80.63, 296.87°)
OKLab	oklab(50.82% -0.005 -0.2079)
OKLCH	oklch(50.82% 0.208 268.6)
XYZ	xyz(17.3193, 12.0588, 67.7309)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3753DA #DABE37

analogous

#37A4DA #3753DA #6C37DA

triadic

#3753DA #DA3753 #53DA37

tetradic

#3753DA #DA37A4 #DABE37 #37DA6C

square

#3753DA #DA37A4 #DABE37 #37DA6C

split-complementary

#3753DA #DA6C37 #A4DA37

monochromatic

#18297F #213AB3 #3753DA #6B7FE4 #9EACED

Accessibility & contrast

On white

6.15

#3753DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3753DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3753DA

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3753DA	#FFFFFF	#000000	##FFFFFF
##3753DA	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069DE

Deuteranopia (green-blind)

#005AD7

Tritanopia (blue-blind)

#00768F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3753da;
/* rgb */ color: rgb(55, 83, 218);
/* oklch */ color: oklch(50.8% 0.208 268.6);

Tailwind

colors: {
  custom: {
    50: '#8583e7',
    500: '#3753da',
    950: '#000000',
  },
}

SCSS

$custom: #3753da;
$custom-light: #8583e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3753da",
  "rgb": {
    "r": 55,
    "g": 83,
    "b": 218
  },
  "hsl": {
    "h": 229.693,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.50824,
    "c": 0.20795,
    "h": 268.6
  },
  "luminance": 0.12061
}

Semantic roles & 50–950 ramp

primary

#3753DA

secondary

#D9CD93

accent

#CD3CEC

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3753DA

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

Preview Lab → · Contrast checker → · Palette generator →