#373AA2#373AA2

#373AA2 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.164 H 275.3°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#373AA2
RGB	rgb(55, 58, 162)
HSL	hsl(238, 49%, 43%)
HSV	hsv(238, 66%, 64%)
CMYK	cmyk(66%, 64.2%, 0%, 36.5%)
CIE-LAB	lab(30.51, 32.44, -56.70)
CIE-LCH	lch(30.51, 65.32, 299.77°)
OKLab	oklab(41.42% 0.0152 -0.1635)
OKLCH	oklch(41.42% 0.164 275.3)
XYZ	xyz(9.6080, 6.4461, 34.9133)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.61

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373AA2 #A29F37

analogous

#376FA2 #373AA2 #6A37A2

triadic

#373AA2 #A2373A #3AA237

tetradic

#373AA2 #A2376F #A29F37 #37A26A

square

#373AA2 #A2376F #A29F37 #37A26A

split-complementary

#373AA2 #A26A37 #6FA237

monochromatic

#181947 #272A74 #373AA2 #5255C4 #8082D4

Accessibility & contrast

On white

9.17

#373AA2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#373AA2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373AA2

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373AA2	#FFFFFF	#000000	##FFFFFF
##373AA2	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA5

Deuteranopia (green-blind)

#0043A0

Tritanopia (blue-blind)

#005468

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #373aa2;
/* rgb */ color: rgb(55, 58, 162);
/* oklch */ color: oklch(41.4% 0.164 275.3);

Tailwind

colors: {
  custom: {
    50: '#7b70be',
    500: '#373aa2',
    950: '#000000',
  },
}

SCSS

$custom: #373aa2;
$custom-light: #7b70be;
$custom-dark: #000000;

JSON

{
  "hex": "#373aa2",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 162
  },
  "hsl": {
    "h": 238.318,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41419,
    "c": 0.16417,
    "h": 275.3
  },
  "luminance": 0.06447
}

Semantic roles & 50–950 ramp

primary

#373AA2

secondary

#BDBB78

accent

#D54FD9

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #373AA2

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

Preview Lab → · Contrast checker → · Palette generator →