#3738C6#3738C6

#3738C6 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.5% C 0.213 H 273.3°. Best body text is #FFFFFF at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#3738C6
RGB	rgb(55, 56, 198)
HSL	hsl(240, 57%, 50%)
HSV	hsv(240, 72%, 78%)
CMYK	cmyk(72.2%, 71.7%, 0%, 22.4%)
CIE-LAB	lab(33.39, 45.93, -73.37)
CIE-LCH	lch(33.39, 86.56, 302.05°)
OKLab	oklab(44.51% 0.0123 -0.2122)
OKLCH	oklch(44.51% 0.213 273.3)
XYZ	xyz(13.1794, 7.7165, 54.2100)
Luminance	0.0772 (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

#3738C6 #C6C537

analogous

#3780C6 #3738C6 #7D37C6

triadic

#3738C6 #C63738 #38C637

tetradic

#3738C6 #C63780 #C6C537 #37C67D

square

#3738C6 #C63780 #C6C537 #37C67D

split-complementary

#3738C6 #C67D37 #80C637

monochromatic

#1C1D66 #2A2A96 #3738C6 #6667D4 #9696E2

Accessibility & contrast

On white

8.26

#3738C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3738C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738C6

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738C6	#FFFFFF	#000000	##FFFFFF
##3738C6	1.00	8.26	2.54	8.26
#FFFFFF	8.26	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055CA

Deuteranopia (green-blind)

#0048C3

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3738c6;
/* rgb */ color: rgb(55, 56, 198);
/* oklch */ color: oklch(44.5% 0.213 273.3);

Tailwind

colors: {
  custom: {
    50: '#8370d9',
    500: '#3738c6',
    950: '#000000',
  },
}

SCSS

$custom: #3738c6;
$custom-light: #8370d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3738c6",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 198
  },
  "hsl": {
    "h": 239.58,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44509,
    "c": 0.21258,
    "h": 273.3
  },
  "luminance": 0.07718
}

Semantic roles & 50–950 ramp

primary

#3738C6

secondary

#CDCD8C

accent

#DF48E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3738C6

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

Preview Lab → · Contrast checker → · Palette generator →