#3738D0#3738D0

#3738D0 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.5% C 0.225 H 272.7°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#3738D0
RGB	rgb(55, 56, 208)
HSL	hsl(240, 62%, 52%)
HSV	hsv(240, 74%, 82%)
CMYK	cmyk(73.6%, 73.1%, 0%, 18.4%)
CIE-LAB	lab(34.38, 49.21, -77.54)
CIE-LCH	lch(34.38, 91.84, 302.40°)
OKLab	oklab(45.52% 0.0106 -0.2244)
OKLCH	oklch(45.52% 0.225 272.7)
XYZ	xyz(14.3711, 8.1932, 60.4863)
Luminance	0.0819 (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

#3738D0 #D0CF37

analogous

#3785D0 #3738D0 #8337D0

triadic

#3738D0 #D03738 #38D037

tetradic

#3738D0 #D03785 #D0CF37 #37D083

square

#3738D0 #D03785 #D0CF37 #37D083

split-complementary

#3738D0 #D08337 #85D037

monochromatic

#1B1B72 #2627A3 #3738D0 #6969DC #9A9BE7

Accessibility & contrast

On white

7.96

#3738D0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3738D0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738D0

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738D0	#FFFFFF	#000000	##FFFFFF
##3738D0	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D4

Deuteranopia (green-blind)

#0049CD

Tritanopia (blue-blind)

#006481

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3738d0;
/* rgb */ color: rgb(55, 56, 208);
/* oklch */ color: oklch(45.5% 0.225 272.7);

Tailwind

colors: {
  custom: {
    50: '#8570e0',
    500: '#3738d0',
    950: '#000000',
  },
}

SCSS

$custom: #3738d0;
$custom-light: #8570e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3738d0",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 208
  },
  "hsl": {
    "h": 239.608,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.45518,
    "c": 0.22464,
    "h": 272.7
  },
  "luminance": 0.08195
}

Semantic roles & 50–950 ramp

primary

#3738D0

secondary

#D3D390

accent

#E443E5

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3738D0

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

Preview Lab → · Contrast checker → · Palette generator →