#37397E#37397E

#37397E is a dark, moderate blue. Relative luminance 0.052; OKLCH L 38.2% C 0.114 H 278.3°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#37397E
RGB	rgb(55, 57, 126)
HSL	hsl(238, 39%, 35%)
HSV	hsv(238, 56%, 49%)
CMYK	cmyk(56.3%, 54.8%, 0%, 50.6%)
CIE-LAB	lab(27.42, 20.45, -39.56)
CIE-LCH	lch(27.42, 44.53, 297.33°)
OKLab	oklab(38.24% 0.0164 -0.1131)
OKLCH	oklch(38.24% 0.114 278.3)
XYZ	xyz(6.8034, 5.2444, 20.3884)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37397E #7E7C37

analogous

#375C7E #37397E #58377E

triadic

#37397E #7E3739 #397E37

tetradic

#37397E #7E375C #7E7C37 #377E58

square

#37397E #7E375C #7E7C37 #377E58

split-complementary

#37397E #7E5837 #5C7E37

monochromatic

#121229 #242653 #37397E #4A4CA9 #6F71C0

Accessibility & contrast

On white

10.25

#37397E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#37397E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37397E

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37397E	#FFFFFF	#000000	##FFFFFF
##37397E	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#124480

Deuteranopia (green-blind)

#063E7D

Tritanopia (blue-blind)

#154955

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #37397e;
/* rgb */ color: rgb(55, 57, 126);
/* oklch */ color: oklch(38.2% 0.114 278.3);

Tailwind

colors: {
  custom: {
    50: '#746fa4',
    500: '#37397e',
    950: '#000000',
  },
}

SCSS

$custom: #37397e;
$custom-light: #746fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#37397e",
  "rgb": {
    "r": 55,
    "g": 57,
    "b": 126
  },
  "hsl": {
    "h": 238.31,
    "s": 39.227,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38239,
    "c": 0.11428,
    "h": 278.3
  },
  "luminance": 0.05245
}

Semantic roles & 50–950 ramp

primary

#37397E

secondary

#A9A768

accent

#CC59CF

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #37397E

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

Preview Lab → · Contrast checker → · Palette generator →