#3738C3#3738C3

#3738C3 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.2% C 0.209 H 273.5°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#3738C3
RGB	rgb(55, 56, 195)
HSL	hsl(240, 56%, 49%)
HSV	hsv(240, 72%, 76%)
CMYK	cmyk(71.8%, 71.3%, 0%, 23.5%)
CIE-LAB	lab(33.09, 44.93, -72.10)
CIE-LCH	lch(33.09, 84.95, 301.93°)
OKLab	oklab(44.21% 0.0127 -0.2085)
OKLCH	oklch(44.21% 0.209 273.5)
XYZ	xyz(12.8368, 7.5794, 52.4056)
Luminance	0.0758 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.55

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3738C3 #C3C237

analogous

#377EC3 #3738C3 #7C37C3

triadic

#3738C3 #C33738 #38C337

tetradic

#3738C3 #C3377E #C3C237 #37C37C

square

#3738C3 #C3377E #C3C237 #37C37C

split-complementary

#3738C3 #C37C37 #7EC337

monochromatic

#1C1D64 #2A2A93 #3738C3 #6465D3 #9494E1

Accessibility & contrast

On white

8.35

#3738C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3738C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738C3

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738C3	#FFFFFF	#000000	##FFFFFF
##3738C3	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C7

Deuteranopia (green-blind)

#0047C0

Tritanopia (blue-blind)

#005F7A

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3738c3;
/* rgb */ color: rgb(55, 56, 195);
/* oklch */ color: oklch(44.2% 0.209 273.5);

Tailwind

colors: {
  custom: {
    50: '#8270d6',
    500: '#3738c3',
    950: '#000000',
  },
}

SCSS

$custom: #3738c3;
$custom-light: #8270d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3738c3",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 195
  },
  "hsl": {
    "h": 239.571,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.4421,
    "c": 0.20891,
    "h": 273.5
  },
  "luminance": 0.07581
}

Semantic roles & 50–950 ramp

primary

#3738C3

secondary

#CCCB8A

accent

#DE49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3738C3

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

Preview Lab → · Contrast checker → · Palette generator →