#40278B#40278B

#40278B is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.0% C 0.156 H 287.7°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#40278B
RGB	rgb(64, 39, 139)
HSL	hsl(255, 56%, 35%)
HSV	hsv(255, 72%, 55%)
CMYK	cmyk(54%, 71.9%, 0%, 45.5%)
CIE-LAB	lab(24.97, 37.87, -51.63)
CIE-LCH	lch(24.97, 64.03, 306.26°)
OKLab	oklab(36.97% 0.0473 -0.1483)
OKLCH	oklch(36.97% 0.156 287.7)
XYZ	xyz(7.4987, 4.4047, 24.8762)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40278B #728B27

analogous

#27408B #40278B #72278B

triadic

#40278B #8B4027 #278B40

tetradic

#40278B #8B2740 #728B27 #278B72

square

#40278B #8B2740 #728B27 #278B72

split-complementary

#40278B #8B7227 #408B27

monochromatic

#140C2B #2A1A5B #40278B #5634BB #795BD1

Accessibility & contrast

On white

11.16

#40278B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#40278B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40278B

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40278B	#FFFFFF	#000000	##FFFFFF
##40278B	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#234156

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #40278b;
/* rgb */ color: rgb(64, 39, 139);
/* oklch */ color: oklch(37.0% 0.156 287.7);

Tailwind

colors: {
  custom: {
    50: '#7d63ae',
    500: '#40278b',
    950: '#000000',
  },
}

SCSS

$custom: #40278b;
$custom-light: #7d63ae;
$custom-dark: #000000;

JSON

{
  "hex": "#40278b",
  "rgb": {
    "r": 64,
    "g": 39,
    "b": 139
  },
  "hsl": {
    "h": 255,
    "s": 56.18,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36973,
    "c": 0.15571,
    "h": 287.7
  },
  "luminance": 0.04405
}

Semantic roles & 50–950 ramp

primary

#40278B

secondary

#9FB658

accent

#DF48BA

background

#F8F6FA

surface

#EFEBF4

border

#CAC6CE

text

#0A0510

muted

#7C7A7F

Preview Lab

Preview with #40278B

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

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