#37278F#37278F

#37278F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.5% C 0.162 H 281.8°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#37278F
RGB	rgb(55, 39, 143)
HSL	hsl(249, 57%, 36%)
HSV	hsv(249, 73%, 56%)
CMYK	cmyk(61.5%, 72.7%, 0%, 43.9%)
CIE-LAB	lab(24.47, 37.69, -54.97)
CIE-LCH	lch(24.47, 66.65, 304.44°)
OKLab	oklab(36.52% 0.0331 -0.1584)
OKLCH	oklch(36.52% 0.162 281.8)
XYZ	xyz(7.2574, 4.2459, 26.4184)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37278F #7F8F27

analogous

#274B8F #37278F #6B278F

triadic

#37278F #8F3727 #278F37

tetradic

#37278F #8F274B #7F8F27 #278F6B

square

#37278F #8F274B #7F8F27 #278F6B

split-complementary

#37278F #8F6B27 #4B8F27

monochromatic

#120D2F #251A5F #37278F #4934BF #705DD3

Accessibility & contrast

On white

11.36

#37278F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#37278F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37278F

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37278F	#FFFFFF	#000000	##FFFFFF
##37278F	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E92

Deuteranopia (green-blind)

#00368D

Tritanopia (blue-blind)

#004358

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #37278f;
/* rgb */ color: rgb(55, 39, 143);
/* oklch */ color: oklch(36.5% 0.162 281.8);

Tailwind

colors: {
  custom: {
    50: '#7963b1',
    500: '#37278f',
    950: '#000000',
  },
}

SCSS

$custom: #37278f;
$custom-light: #7963b1;
$custom-dark: #000000;

JSON

{
  "hex": "#37278f",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 143
  },
  "hsl": {
    "h": 249.231,
    "s": 57.143,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36521,
    "c": 0.16185,
    "h": 281.8
  },
  "luminance": 0.04246
}

Semantic roles & 50–950 ramp

primary

#37278F

secondary

#AAB85A

accent

#E047C9

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0511

muted

#7C7A80

Preview Lab

Preview with #37278F

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

Preview Lab → · Contrast checker → · Palette generator →