#373ECA#373ECA

#373ECA is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.8% C 0.211 H 272.3°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#373ECA
RGB	rgb(55, 62, 202)
HSL	hsl(237, 58%, 50%)
HSV	hsv(237, 73%, 79%)
CMYK	cmyk(72.8%, 69.3%, 0%, 20.8%)
CIE-LAB	lab(35.04, 43.76, -72.97)
CIE-LCH	lch(35.04, 85.09, 300.95°)
OKLab	oklab(45.82% 0.0084 -0.2111)
OKLCH	oklch(45.82% 0.211 272.3)
XYZ	xyz(13.9553, 8.5203, 56.7748)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.43

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373ECA #CAC337

analogous

#3787CA #373ECA #7937CA

triadic

#373ECA #CA373E #3ECA37

tetradic

#373ECA #CA3787 #CAC337 #37CA79

square

#373ECA #CA3787 #CAC337 #37CA79

split-complementary

#373ECA #CA7937 #87CA37

monochromatic

#1C206A #292E9B #373ECA #676DD7 #989BE4

Accessibility & contrast

On white

7.77

#373ECA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#373ECA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373ECA

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373ECA	#FFFFFF	#000000	##FFFFFF
##373ECA	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CE

Deuteranopia (green-blind)

#004BC7

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #373eca;
/* rgb */ color: rgb(55, 62, 202);
/* oklch */ color: oklch(45.8% 0.211 272.3);

Tailwind

colors: {
  custom: {
    50: '#8374db',
    500: '#373eca',
    950: '#000000',
  },
}

SCSS

$custom: #373eca;
$custom-light: #8374db;
$custom-dark: #000000;

JSON

{
  "hex": "#373eca",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 202
  },
  "hsl": {
    "h": 237.143,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.45816,
    "c": 0.21125,
    "h": 272.3
  },
  "luminance": 0.08522
}

Semantic roles & 50–950 ramp

primary

#373ECA

secondary

#CFCC8E

accent

#DA46E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #373ECA

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

Preview Lab → · Contrast checker → · Palette generator →