#37337D#37337D

#37337D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.0% C 0.122 H 281.1°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#37337D
RGB	rgb(55, 51, 125)
HSL	hsl(243, 42%, 35%)
HSV	hsv(243, 59%, 49%)
CMYK	cmyk(56%, 59.2%, 0%, 51%)
CIE-LAB	lab(25.74, 24.12, -41.64)
CIE-LCH	lch(25.74, 48.12, 300.08°)
OKLab	oklab(36.97% 0.0234 -0.1192)
OKLCH	oklch(36.97% 0.122 281.1)
XYZ	xyz(6.4599, 4.6602, 19.9572)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37337D #797D33

analogous

#33547D #37337D #5C337D

triadic

#37337D #7D3733 #337D37

tetradic

#37337D #7D3354 #797D33 #337D5C

square

#37337D #7D3354 #797D33 #337D5C

split-complementary

#37337D #7D5C33 #547D33

monochromatic

#111026 #242152 #37337D #4A45A8 #6E69C2

Accessibility & contrast

On white

10.87

#37337D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#37337D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37337D

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37337D	#FFFFFF	#000000	##FFFFFF
##37337D	1.00	10.87	1.93	10.87
#FFFFFF	10.87	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00407F

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#174452

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #37337d;
/* rgb */ color: rgb(55, 51, 125);
/* oklch */ color: oklch(37.0% 0.122 281.1);

Tailwind

colors: {
  custom: {
    50: '#746ba3',
    500: '#37337d',
    950: '#000000',
  },
}

SCSS

$custom: #37337d;
$custom-light: #746ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#37337d",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 125
  },
  "hsl": {
    "h": 243.243,
    "s": 42.045,
    "l": 34.51
  },
  "oklch": {
    "l": 0.36966,
    "c": 0.12151,
    "h": 281.1
  },
  "luminance": 0.04661
}

Semantic roles & 50–950 ramp

primary

#37337D

secondary

#A6AA62

accent

#D256CB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#09060F

muted

#7B7A7F

Preview Lab

Preview with #37337D

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

Preview Lab → · Contrast checker → · Palette generator →