#373E8D#373E8D

#373E8D is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.129 H 275.2°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#373E8D
RGB	rgb(55, 62, 141)
HSL	hsl(235, 44%, 38%)
HSV	hsv(235, 61%, 55%)
CMYK	cmyk(61%, 56%, 0%, 44.7%)
CIE-LAB	lab(29.86, 22.39, -44.94)
CIE-LCH	lch(29.86, 50.21, 296.48°)
OKLab	oklab(40.41% 0.0117 -0.1289)
OKLCH	oklch(40.41% 0.129 275.2)
XYZ	xyz(8.1043, 6.1799, 25.9599)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373E8D #8D8637

analogous

#37698D #373E8D #5B378D

triadic

#373E8D #8D373E #3E8D37

tetradic

#373E8D #8D3769 #8D8637 #378D5B

square

#373E8D #8D3769 #8D8637 #378D5B

split-complementary

#373E8D #8D5B37 #698D37

monochromatic

#151735 #262B61 #373E8D #4952B8 #757CC9

Accessibility & contrast

On white

9.39

#373E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#373E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373E8D

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373E8D	#FFFFFF	#000000	##FFFFFF
##373E8D	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064A90

Deuteranopia (green-blind)

#00438B

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #373e8d;
/* rgb */ color: rgb(55, 62, 141);
/* oklch */ color: oklch(40.4% 0.129 275.2);

Tailwind

colors: {
  custom: {
    50: '#7773af',
    500: '#373e8d',
    950: '#000000',
  },
}

SCSS

$custom: #373e8d;
$custom-light: #7773af;
$custom-dark: #000000;

JSON

{
  "hex": "#373e8d",
  "rgb": {
    "r": 55,
    "g": 62,
    "b": 141
  },
  "hsl": {
    "h": 235.116,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.40413,
    "c": 0.12941,
    "h": 275.2
  },
  "luminance": 0.06181
}

Semantic roles & 50–950 ramp

primary

#373E8D

secondary

#B2AC6E

accent

#C954D4

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #373E8D

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

Preview Lab → · Contrast checker → · Palette generator →