#373D90#373D90

#373D90 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.135 H 275.5°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#373D90
RGB	rgb(55, 61, 144)
HSL	hsl(236, 45%, 39%)
HSV	hsv(236, 62%, 56%)
CMYK	cmyk(61.8%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(29.82, 24.12, -46.86)
CIE-LCH	lch(29.82, 52.70, 297.24°)
OKLab	oklab(40.45% 0.0128 -0.1345)
OKLCH	oklch(40.45% 0.135 275.5)
XYZ	xyz(8.2767, 6.1627, 27.1335)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373D90 #908A37

analogous

#376A90 #373D90 #5E3790

triadic

#373D90 #90373D #3D9037

tetradic

#373D90 #90376A #908A37 #37905E

square

#373D90 #90376A #908A37 #37905E

split-complementary

#373D90 #905E37 #6A9037

monochromatic

#151737 #262A64 #373D90 #4A52BA #777CCB

Accessibility & contrast

On white

9.41

#373D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#373D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373D90

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373D90	#FFFFFF	#000000	##FFFFFF
##373D90	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00438E

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #373d90;
/* rgb */ color: rgb(55, 61, 144);
/* oklch */ color: oklch(40.5% 0.135 275.5);

Tailwind

colors: {
  custom: {
    50: '#7772b1',
    500: '#373d90',
    950: '#000000',
  },
}

SCSS

$custom: #373d90;
$custom-light: #7772b1;
$custom-dark: #000000;

JSON

{
  "hex": "#373d90",
  "rgb": {
    "r": 55,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 235.955,
    "s": 44.724,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40453,
    "c": 0.13514,
    "h": 275.5
  },
  "luminance": 0.06163
}

Semantic roles & 50–950 ramp

primary

#373D90

secondary

#B4AF6F

accent

#CC53D4

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #373D90

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

Preview Lab → · Contrast checker → · Palette generator →