#37279A#37279A

#37279A is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.6% C 0.176 H 280.1°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#37279A
RGB	rgb(55, 39, 154)
HSL	hsl(248, 60%, 38%)
HSV	hsv(248, 75%, 60%)
CMYK	cmyk(64.3%, 74.7%, 0%, 39.6%)
CIE-LAB	lab(25.55, 41.22, -59.97)
CIE-LCH	lch(25.55, 72.77, 304.51°)
OKLab	oklab(37.62% 0.0308 -0.173)
OKLCH	oklch(37.62% 0.176 280.1)
XYZ	xyz(8.1319, 4.5957, 31.0241)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37279A #8A9A27

analogous

#27509A #37279A #70279A

triadic

#37279A #9A3727 #279A37

tetradic

#37279A #9A2750 #8A9A27 #279A70

square

#37279A #9A2750 #8A9A27 #279A70

split-complementary

#37279A #9A7027 #509A27

monochromatic

#140E38 #261B69 #37279A #4833CB #7464D8

Accessibility & contrast

On white

10.94

#37279A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#37279A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37279A

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37279A	#FFFFFF	#000000	##FFFFFF
##37279A	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00419D

Deuteranopia (green-blind)

#003898

Tritanopia (blue-blind)

#00475E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #37279a;
/* rgb */ color: rgb(55, 39, 154);
/* oklch */ color: oklch(37.6% 0.176 280.1);

Tailwind

colors: {
  custom: {
    50: '#7b63b9',
    500: '#37279a',
    950: '#000000',
  },
}

SCSS

$custom: #37279a;
$custom-light: #7b63b9;
$custom-dark: #000000;

JSON

{
  "hex": "#37279a",
  "rgb": {
    "r": 55,
    "g": 39,
    "b": 154
  },
  "hsl": {
    "h": 248.348,
    "s": 59.585,
    "l": 37.843
  },
  "oklch": {
    "l": 0.37617,
    "c": 0.17576,
    "h": 280.1
  },
  "luminance": 0.04596
}

Semantic roles & 50–950 ramp

primary

#37279A

secondary

#B0BD5F

accent

#E345CD

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0512

muted

#7C7A81

Preview Lab

Preview with #37279A

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

Preview Lab → · Contrast checker → · Palette generator →