#3738D4#3738D4

#3738D4 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.9% C 0.229 H 272.5°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#3738D4
RGB	rgb(55, 56, 212)
HSL	hsl(240, 65%, 52%)
HSV	hsv(240, 74%, 83%)
CMYK	cmyk(74.1%, 73.6%, 0%, 16.9%)
CIE-LAB	lab(34.79, 50.50, -79.19)
CIE-LCH	lch(34.79, 93.92, 302.53°)
OKLab	oklab(45.93% 0.01 -0.2292)
OKLCH	oklch(45.93% 0.229 272.5)
XYZ	xyz(14.8694, 8.3925, 63.1109)
Luminance	0.0839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3738D4 #D4D337

analogous

#3786D4 #3738D4 #8537D4

triadic

#3738D4 #D43738 #38D437

tetradic

#3738D4 #D43786 #D4D337 #37D485

square

#3738D4 #D43786 #D4D337 #37D485

split-complementary

#3738D4 #D48537 #86D437

monochromatic

#1A1A77 #2425A9 #3738D4 #696ADF #9C9CEA

Accessibility & contrast

On white

7.84

#3738D4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3738D4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738D4

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738D4	#FFFFFF	#000000	##FFFFFF
##3738D4	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D9

Deuteranopia (green-blind)

#004AD1

Tritanopia (blue-blind)

#006583

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3738d4;
/* rgb */ color: rgb(55, 56, 212);
/* oklch */ color: oklch(45.9% 0.229 272.5);

Tailwind

colors: {
  custom: {
    50: '#8671e3',
    500: '#3738d4',
    950: '#000000',
  },
}

SCSS

$custom: #3738d4;
$custom-light: #8671e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3738d4",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 212
  },
  "hsl": {
    "h": 239.618,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.45926,
    "c": 0.2294,
    "h": 272.5
  },
  "luminance": 0.08394
}

Semantic roles & 50–950 ramp

primary

#3738D4

secondary

#D6D591

accent

#E740E8

background

#F9F6FE

surface

#F1ECFC

border

#CBC7D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3738D4

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

Preview Lab → · Contrast checker → · Palette generator →