#37405C#37405C

#37405C is a dark, muted blue. Relative luminance 0.053; OKLCH L 37.6% C 0.050 H 270.2°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#37405C
RGB	rgb(55, 64, 92)
HSL	hsl(225, 25%, 29%)
HSV	hsv(225, 40%, 36%)
CMYK	cmyk(40.2%, 30.4%, 0%, 63.9%)
CIE-LAB	lab(27.44, 4.26, -17.84)
CIE-LCH	lch(27.44, 18.34, 283.44°)
OKLab	oklab(37.6% 0.0002 -0.0497)
OKLCH	oklch(37.6% 0.05 270.2)
XYZ	xyz(5.3401, 5.2515, 10.8554)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37405C #5C5337

analogous

#37535C #37405C #41375C

triadic

#37405C #5C3740 #405C37

tetradic

#37405C #5C3753 #5C5337 #375C41

square

#37405C #5C3753 #5C5337 #375C41

split-complementary

#37405C #5C4137 #535C37

monochromatic

#0B0D13 #202536 #37405C #4E5B82 #6877A5

Accessibility & contrast

On white

10.24

#37405C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#37405C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37405C

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37405C	#FFFFFF	#000000	##FFFFFF
##37405C	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37435D

Deuteranopia (green-blind)

#343F5B

Tritanopia (blue-blind)

#2C464A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #37405c;
/* rgb */ color: rgb(55, 64, 92);
/* oklch */ color: oklch(37.6% 0.050 270.2);

Tailwind

colors: {
  custom: {
    50: '#6f748a',
    500: '#37405c',
    950: '#000000',
  },
}

SCSS

$custom: #37405c;
$custom-light: #6f748a;
$custom-dark: #000000;

JSON

{
  "hex": "#37405c",
  "rgb": {
    "r": 55,
    "g": 64,
    "b": 92
  },
  "hsl": {
    "h": 225.405,
    "s": 25.17,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37596,
    "c": 0.04967,
    "h": 270.2
  },
  "luminance": 0.05252
}

Semantic roles & 50–950 ramp

primary

#37405C

secondary

#8C8262

accent

#AB66C2

background

#F6F7F8

surface

#ECEDF0

border

#C7C8CB

text

#07080B

muted

#7A7B7C

Preview Lab

Preview with #37405C

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

Preview Lab → · Contrast checker → · Palette generator →