#373E85#373E85

#373E85 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.8% C 0.118 H 275.5°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#373E85
RGB	rgb(55, 62, 133)
HSL	hsl(235, 41%, 37%)
HSV	hsv(235, 59%, 52%)
CMYK	cmyk(58.6%, 53.4%, 0%, 47.8%)
CIE-LAB	lab(29.29, 19.55, -40.92)
CIE-LCH	lch(29.29, 45.35, 295.53°)
OKLab	oklab(39.8% 0.0112 -0.117)
OKLCH	oklch(39.8% 0.118 275.5)
XYZ	xyz(7.5304, 5.9504, 22.9375)
Luminance	0.0595 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373E85 #857E37

analogous

#376585 #373E85 #573785

triadic

#373E85 #85373E #3E8537

tetradic

#373E85 #853765 #857E37 #378557

square

#373E85 #853765 #857E37 #378557

split-complementary

#373E85 #855737 #658537

monochromatic

#13162E #252A5A #373E85 #4952B0 #7279C5

Accessibility & contrast

On white

9.59

#373E85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#373E85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373E85

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373E85	#FFFFFF	#000000	##FFFFFF
##373E85	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#174888

Deuteranopia (green-blind)

#074284

Tritanopia (blue-blind)

#084E5B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #373e85;
/* rgb */ color: rgb(55, 62, 133);
/* oklch */ color: oklch(39.8% 0.118 275.5);

Tailwind

colors: {
  custom: {
    50: '#7573a9',
    500: '#373e85',
    950: '#000000',
  },
}

SCSS

$custom: #373e85;
$custom-light: #7573a9;
$custom-dark: #000000;

JSON

{
  "hex": "#373e85",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 133
  },
  "hsl": {
    "h": 234.615,
    "s": 41.489,
    "l": 36.863
  },
  "oklch": {
    "l": 0.39799,
    "c": 0.11758,
    "h": 275.5
  },
  "luminance": 0.05951
}

Semantic roles & 50–950 ramp

primary

#373E85

secondary

#ADA76A

accent

#C656D1

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #373E85

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

Preview Lab → · Contrast checker → · Palette generator →