#373CC3#373CC3

#373CC3 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.8% C 0.205 H 272.9°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#373CC3
RGB	rgb(55, 60, 195)
HSL	hsl(238, 56%, 49%)
HSV	hsv(238, 72%, 76%)
CMYK	cmyk(71.8%, 69.2%, 0%, 23.5%)
CIE-LAB	lab(33.95, 42.58, -70.69)
CIE-LCH	lch(33.95, 82.52, 301.06°)
OKLab	oklab(44.83% 0.0105 -0.2044)
OKLCH	oklch(44.83% 0.205 272.9)
XYZ	xyz(13.0384, 7.9828, 52.4729)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373CC3 #C3BE37

analogous

#3782C3 #373CC3 #7837C3

triadic

#373CC3 #C3373C #3CC337

tetradic

#373CC3 #C33782 #C3BE37 #37C378

square

#373CC3 #C33782 #C3BE37 #37C378

split-complementary

#373CC3 #C37837 #82C337

monochromatic

#1C1F64 #2A2D93 #373CC3 #6468D3 #9496E1

Accessibility & contrast

On white

8.09

#373CC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#373CC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373CC3

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373CC3	#FFFFFF	#000000	##FFFFFF
##373CC3	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C7

Deuteranopia (green-blind)

#0049C1

Tritanopia (blue-blind)

#00617B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #373cc3;
/* rgb */ color: rgb(55, 60, 195);
/* oklch */ color: oklch(44.8% 0.205 272.9);

Tailwind

colors: {
  custom: {
    50: '#8272d6',
    500: '#373cc3',
    950: '#000000',
  },
}

SCSS

$custom: #373cc3;
$custom-light: #8272d6;
$custom-dark: #000000;

JSON

{
  "hex": "#373cc3",
  "rgb": {
    "r": 55,
    "g": 60,
    "b": 195
  },
  "hsl": {
    "h": 237.857,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44825,
    "c": 0.20468,
    "h": 272.9
  },
  "luminance": 0.07984
}

Semantic roles & 50–950 ramp

primary

#373CC3

secondary

#CCCA8A

accent

#DA49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #373CC3

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

Preview Lab → · Contrast checker → · Palette generator →