#37279C#37279C

#37279C is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.8% C 0.178 H 279.8°. Best body text is #FFFFFF at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#37279C
RGB	rgb(55, 39, 156)
HSL	hsl(248, 60%, 38%)
HSV	hsv(248, 75%, 61%)
CMYK	cmyk(64.7%, 75%, 0%, 38.8%)
CIE-LAB	lab(25.75, 41.86, -60.86)
CIE-LCH	lch(25.75, 73.87, 304.52°)
OKLab	oklab(37.82% 0.0303 -0.1756)
OKLCH	oklch(37.82% 0.178 279.8)
XYZ	xyz(8.2999, 4.6629, 31.9087)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37279C #8C9C27

analogous

#27519C #37279C #71279C

triadic

#37279C #9C3727 #279C37

tetradic

#37279C #9C2751 #8C9C27 #279C71

square

#37279C #9C2751 #8C9C27 #279C71

split-complementary

#37279C #9C7127 #519C27

monochromatic

#140F3A #261B6B #37279C #4934CC #7565D8

Accessibility & contrast

On white

10.87

#37279C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#37279C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37279C

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37279C	#FFFFFF	#000000	##FFFFFF
##37279C	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)

#00419F

Deuteranopia (green-blind)

#00389A

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #37279c;
/* rgb */ color: rgb(55, 39, 156);
/* oklch */ color: oklch(37.8% 0.178 279.8);

Tailwind

colors: {
  custom: {
    50: '#7b63ba',
    500: '#37279c',
    950: '#000000',
  },
}

SCSS

$custom: #37279c;
$custom-light: #7b63ba;
$custom-dark: #000000;

JSON

{
  "hex": "#37279c",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 156
  },
  "hsl": {
    "h": 248.205,
    "s": 60,
    "l": 38.235
  },
  "oklch": {
    "l": 0.3782,
    "c": 0.17824,
    "h": 279.8
  },
  "luminance": 0.04664
}

Semantic roles & 50–950 ramp

primary

#37279C

secondary

#B1BE61

accent

#E345CD

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0512

muted

#7C7A81

Preview Lab

Preview with #37279C

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

Preview Lab → · Contrast checker → · Palette generator →