#3755DA#3755DA

#3755DA is a mid, highly saturated blue. Relative luminance 0.124; OKLCH L 51.2% C 0.206 H 268.2°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#3755DA
RGB	rgb(55, 85, 218)
HSL	hsl(229, 69%, 54%)
HSV	hsv(229, 75%, 85%)
CMYK	cmyk(74.8%, 61%, 0%, 14.5%)
CIE-LAB	lab(41.80, 35.18, -71.12)
CIE-LCH	lch(41.80, 79.35, 296.32°)
OKLab	oklab(51.18% -0.0063 -0.2055)
OKLCH	oklch(51.18% 0.206 268.2)
XYZ	xyz(17.4746, 12.3693, 67.7826)
Luminance	0.1237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3755DA #DABC37

analogous

#37A6DA #3755DA #6A37DA

triadic

#3755DA #DA3755 #55DA37

tetradic

#3755DA #DA37A6 #DABC37 #37DA6A

square

#3755DA #DA37A6 #DABC37 #37DA6A

split-complementary

#3755DA #DA6A37 #A6DA37

monochromatic

#182B7F #213CB3 #3755DA #6B81E4 #9EADED

Accessibility & contrast

On white

6.04

#3755DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#3755DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3755DA

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3755DA	#FFFFFF	#000000	##FFFFFF
##3755DA	1.00	6.04	3.47	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADE

Deuteranopia (green-blind)

#005BD7

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3755da;
/* rgb */ color: rgb(55, 85, 218);
/* oklch */ color: oklch(51.2% 0.206 268.2);

Tailwind

colors: {
  custom: {
    50: '#8584e6',
    500: '#3755da',
    950: '#000000',
  },
}

SCSS

$custom: #3755da;
$custom-light: #8584e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3755da",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 218
  },
  "hsl": {
    "h": 228.957,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51184,
    "c": 0.20563,
    "h": 268.2
  },
  "luminance": 0.12371
}

Semantic roles & 50–950 ramp

primary

#3755DA

secondary

#D9CC93

accent

#CB3CEC

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3755DA

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

Preview Lab → · Contrast checker → · Palette generator →