#373EC7#373EC7

#373EC7 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.5% C 0.208 H 272.4°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#373EC7
RGB	rgb(55, 62, 199)
HSL	hsl(237, 57%, 50%)
HSV	hsv(237, 72%, 78%)
CMYK	cmyk(72.4%, 68.8%, 0%, 22%)
CIE-LAB	lab(34.76, 42.74, -71.69)
CIE-LCH	lch(34.76, 83.46, 300.81°)
OKLab	oklab(45.53% 0.0088 -0.2073)
OKLCH	oklch(45.53% 0.208 272.4)
XYZ	xyz(13.6035, 8.3796, 54.9223)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.33

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373EC7 #C7C037

analogous

#3786C7 #373EC7 #7837C7

triadic

#373EC7 #C7373E #3EC737

tetradic

#373EC7 #C73786 #C7C037 #37C778

square

#373EC7 #C73786 #C7C037 #37C778

split-complementary

#373EC7 #C77837 #86C737

monochromatic

#1C2067 #2A2F97 #373EC7 #666CD5 #969AE2

Accessibility & contrast

On white

7.85

#373EC7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#373EC7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373EC7

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373EC7	#FFFFFF	#000000	##FFFFFF
##373EC7	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CB

Deuteranopia (green-blind)

#004BC4

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #373ec7;
/* rgb */ color: rgb(55, 62, 199);
/* oklch */ color: oklch(45.5% 0.208 272.4);

Tailwind

colors: {
  custom: {
    50: '#8374d9',
    500: '#373ec7',
    950: '#000000',
  },
}

SCSS

$custom: #373ec7;
$custom-light: #8374d9;
$custom-dark: #000000;

JSON

{
  "hex": "#373ec7",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 199
  },
  "hsl": {
    "h": 237.083,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45527,
    "c": 0.20752,
    "h": 272.4
  },
  "luminance": 0.08381
}

Semantic roles & 50–950 ramp

primary

#373EC7

secondary

#CDCA8C

accent

#D948E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373EC7

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

Preview Lab → · Contrast checker → · Palette generator →