#37397A#37397A

#37397A is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.9% C 0.108 H 278.6°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#37397A
RGB	rgb(55, 57, 122)
HSL	hsl(238, 38%, 35%)
HSV	hsv(238, 55%, 48%)
CMYK	cmyk(54.9%, 53.3%, 0%, 52.2%)
CIE-LAB	lab(27.14, 19.05, -37.49)
CIE-LCH	lch(27.14, 42.06, 296.94°)
OKLab	oklab(37.94% 0.0161 -0.107)
OKLCH	oklch(37.94% 0.108 278.6)
XYZ	xyz(6.5504, 5.1432, 19.0562)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37397A #7A7837

analogous

#375B7A #37397A #57377A

triadic

#37397A #7A3739 #397A37

tetradic

#37397A #7A375B #7A7837 #377A57

square

#37397A #7A375B #7A7837 #377A57

split-complementary

#37397A #7A5737 #5B7A37

monochromatic

#111226 #242550 #37397A #4A4DA4 #6E70BE

Accessibility & contrast

On white

10.35

#37397A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#37397A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37397A

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37397A	#FFFFFF	#000000	##FFFFFF
##37397A	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18437C

Deuteranopia (green-blind)

#0F3E79

Tritanopia (blue-blind)

#1A4754

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #37397a;
/* rgb */ color: rgb(55, 57, 122);
/* oklch */ color: oklch(37.9% 0.108 278.6);

Tailwind

colors: {
  custom: {
    50: '#736fa1',
    500: '#37397a',
    950: '#000000',
  },
}

SCSS

$custom: #37397a;
$custom-light: #736fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#37397a",
  "rgb": {
    "r": 55,
    "g": 57,
    "b": 122
  },
  "hsl": {
    "h": 238.209,
    "s": 37.853,
    "l": 34.706
  },
  "oklch": {
    "l": 0.37938,
    "c": 0.10823,
    "h": 278.6
  },
  "luminance": 0.05144
}

Semantic roles & 50–950 ramp

primary

#37397A

secondary

#A6A466

accent

#CA5ACE

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#08070F

muted

#7B7A7E

Preview Lab

Preview with #37397A

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

Preview Lab → · Contrast checker → · Palette generator →