#3738B6#3738B6

#3738B6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.193 H 274.3°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#3738B6
RGB	rgb(55, 56, 182)
HSL	hsl(240, 54%, 46%)
HSV	hsv(240, 70%, 71%)
CMYK	cmyk(69.8%, 69.2%, 0%, 28.6%)
CIE-LAB	lab(31.85, 40.57, -66.48)
CIE-LCH	lch(31.85, 77.88, 301.39°)
OKLab	oklab(42.94% 0.0146 -0.1921)
OKLCH	oklch(42.94% 0.193 274.3)
XYZ	xyz(11.4304, 7.0169, 44.9989)
Luminance	0.0702 (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

#3738B6 #B6B537

analogous

#3778B6 #3738B6 #7637B6

triadic

#3738B6 #B63738 #38B637

tetradic

#3738B6 #B63778 #B6B537 #37B676

square

#3738B6 #B63778 #B6B537 #37B676

split-complementary

#3738B6 #B67637 #78B637

monochromatic

#1B1B58 #292A87 #3738B6 #5C5DCE #8B8CDC

Accessibility & contrast

On white

8.74

#3738B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3738B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3738B6

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3738B6	#FFFFFF	#000000	##FFFFFF
##3738B6	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3738b6;
/* rgb */ color: rgb(55, 56, 182);
/* oklch */ color: oklch(42.9% 0.193 274.3);

Tailwind

colors: {
  custom: {
    50: '#7f6fcd',
    500: '#3738b6',
    950: '#000000',
  },
}

SCSS

$custom: #3738b6;
$custom-light: #7f6fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3738b6",
  "rgb": {
    "r": 55,
    "g": 56,
    "b": 182
  },
  "hsl": {
    "h": 239.528,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42939,
    "c": 0.19268,
    "h": 274.3
  },
  "luminance": 0.07018
}

Semantic roles & 50–950 ramp

primary

#3738B6

secondary

#C6C682

accent

#DC4BDD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3738B6

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

Preview Lab → · Contrast checker → · Palette generator →