#3738C1#3738C1

#3738C1 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.0% C 0.206 H 273.6°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#3738C1
RGB	rgb(55, 56, 193)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(71.5%, 71%, 0%, 24.3%)
CIE-LAB	lab(32.90, 44.27, -71.24)
CIE-LCH	lch(32.90, 83.88, 301.85°)
OKLab	oklab(44.01% 0.013 -0.206)
OKLCH	oklch(44.01% 0.206 273.6)
XYZ	xyz(12.6121, 7.4896, 51.2227)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.57

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3738C1 #C1C037

analogous

#377DC1 #3738C1 #7B37C1

triadic

#3738C1 #C13738 #38C137

tetradic

#3738C1 #C1377D #C1C037 #37C17B

square

#3738C1 #C1377D #C1C037 #37C17B

split-complementary

#3738C1 #C17B37 #7DC137

monochromatic

#1C1C62 #292A91 #3738C1 #6364D2 #9293E0

Accessibility & contrast

On white

8.41

#3738C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#3738C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738C1

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738C1	#FFFFFF	#000000	##FFFFFF
##3738C1	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C5

Deuteranopia (green-blind)

#0047BE

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3738c1;
/* rgb */ color: rgb(55, 56, 193);
/* oklch */ color: oklch(44.0% 0.206 273.6);

Tailwind

colors: {
  custom: {
    50: '#8270d5',
    500: '#3738c1',
    950: '#000000',
  },
}

SCSS

$custom: #3738c1;
$custom-light: #8270d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3738c1",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 193
  },
  "hsl": {
    "h": 239.565,
    "s": 55.645,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44012,
    "c": 0.20644,
    "h": 273.6
  },
  "luminance": 0.07491
}

Semantic roles & 50–950 ramp

primary

#3738C1

secondary

#CBCB89

accent

#DE49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3738C1

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

Preview Lab → · Contrast checker → · Palette generator →