#373BAA#373BAA

#373BAA is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.3% C 0.174 H 274.5°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#373BAA
RGB	rgb(55, 59, 170)
HSL	hsl(238, 51%, 44%)
HSV	hsv(238, 68%, 67%)
CMYK	cmyk(67.6%, 65.3%, 0%, 33.3%)
CIE-LAB	lab(31.44, 34.60, -59.99)
CIE-LCH	lch(31.44, 69.25, 299.97°)
OKLab	oklab(42.31% 0.0138 -0.1731)
OKLCH	oklch(42.31% 0.174 274.5)
XYZ	xyz(10.3928, 6.8415, 38.7953)
Luminance	0.0684 (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

#373BAA #AAA637

analogous

#3775AA #373BAA #6D37AA

triadic

#373BAA #AA373B #3BAA37

tetradic

#373BAA #AA3775 #AAA637 #37AA6D

square

#373BAA #AA3775 #AAA637 #37AA6D

split-complementary

#373BAA #AA6D37 #75AA37

monochromatic

#191B4E #282B7C #373BAA #565AC8 #8487D7

Accessibility & contrast

On white

8.87

#373BAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#373BAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373BAA

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373BAA	#FFFFFF	#000000	##FFFFFF
##373BAA	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAE

Deuteranopia (green-blind)

#0045A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #373baa;
/* rgb */ color: rgb(55, 59, 170);
/* oklch */ color: oklch(42.3% 0.174 274.5);

Tailwind

colors: {
  custom: {
    50: '#7d71c4',
    500: '#373baa',
    950: '#000000',
  },
}

SCSS

$custom: #373baa;
$custom-light: #7d71c4;
$custom-dark: #000000;

JSON

{
  "hex": "#373baa",
  "rgb": {
    "r": 55,
    "g": 59,
    "b": 170
  },
  "hsl": {
    "h": 237.913,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42314,
    "c": 0.17366,
    "h": 274.5
  },
  "luminance": 0.06842
}

Semantic roles & 50–950 ramp

primary

#373BAA

secondary

#C1BF7C

accent

#D64DDB

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #373BAA

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

Preview Lab → · Contrast checker → · Palette generator →