#3738C5#3738C5

#3738C5 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.4% C 0.211 H 273.4°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3738C5
RGB	rgb(55, 56, 197)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 77%)
CMYK	cmyk(72.1%, 71.6%, 0%, 22.7%)
CIE-LAB	lab(33.29, 45.60, -72.94)
CIE-LCH	lch(33.29, 86.02, 302.01°)
OKLab	oklab(44.41% 0.0124 -0.211)
OKLCH	oklch(44.41% 0.211 273.4)
XYZ	xyz(13.0644, 7.6705, 53.6045)
Luminance	0.0767 (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

#3738C5 #C5C437

analogous

#377FC5 #3738C5 #7D37C5

triadic

#3738C5 #C53738 #38C537

tetradic

#3738C5 #C5377F #C5C437 #37C57D

square

#3738C5 #C5377F #C5C437 #37C57D

split-complementary

#3738C5 #C57D37 #7FC537

monochromatic

#1C1D65 #2A2A95 #3738C5 #6566D4 #9596E1

Accessibility & contrast

On white

8.29

#3738C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3738C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738C5

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738C5	#FFFFFF	#000000	##FFFFFF
##3738C5	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C9

Deuteranopia (green-blind)

#0047C2

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3738c5;
/* rgb */ color: rgb(55, 56, 197);
/* oklch */ color: oklch(44.4% 0.211 273.4);

Tailwind

colors: {
  custom: {
    50: '#8370d8',
    500: '#3738c5',
    950: '#000000',
  },
}

SCSS

$custom: #3738c5;
$custom-light: #8370d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3738c5",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 197
  },
  "hsl": {
    "h": 239.577,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.44409,
    "c": 0.21135,
    "h": 273.4
  },
  "luminance": 0.07672
}

Semantic roles & 50–950 ramp

primary

#3738C5

secondary

#CDCC8B

accent

#DF48E0

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3738C5

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

Preview Lab → · Contrast checker → · Palette generator →