#3738DA#3738DA

#3738DA is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.5% C 0.236 H 272.2°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#3738DA
RGB	rgb(55, 56, 218)
HSL	hsl(240, 69%, 54%)
HSV	hsv(240, 75%, 85%)
CMYK	cmyk(74.8%, 74.3%, 0%, 14.5%)
CIE-LAB	lab(35.40, 52.43, -81.63)
CIE-LCH	lch(35.40, 97.02, 302.71°)
OKLab	oklab(46.54% 0.0089 -0.2363)
OKLCH	oklch(46.54% 0.236 272.2)
XYZ	xyz(15.6403, 8.7009, 67.1712)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3738DA #DAD937

analogous

#3789DA #3738DA #8737DA

triadic

#3738DA #DA3738 #38DA37

tetradic

#3738DA #DA3789 #DAD937 #37DA87

square

#3738DA #DA3789 #DAD937 #37DA87

split-complementary

#3738DA #DA8737 #89DA37

monochromatic

#18187F #2122B3 #3738DA #6B6BE4 #9E9FED

Accessibility & contrast

On white

7.66

#3738DA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3738DA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738DA

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738DA	#FFFFFF	#000000	##FFFFFF
##3738DA	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BDF

Deuteranopia (green-blind)

#004BD7

Tritanopia (blue-blind)

#006887

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3738da;
/* rgb */ color: rgb(55, 56, 218);
/* oklch */ color: oklch(46.5% 0.236 272.2);

Tailwind

colors: {
  custom: {
    50: '#8871e7',
    500: '#3738da',
    950: '#000000',
  },
}

SCSS

$custom: #3738da;
$custom-light: #8871e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3738da",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 218
  },
  "hsl": {
    "h": 239.632,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.46545,
    "c": 0.23646,
    "h": 272.2
  },
  "luminance": 0.08703
}

Semantic roles & 50–950 ramp

primary

#3738DA

secondary

#D9D993

accent

#EB3CEC

background

#F9F6FE

surface

#F2ECFD

border

#CCC7D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3738DA

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

Preview Lab → · Contrast checker → · Palette generator →