#40279B#40279B

#40279B is a dark, vivid violet. Relative luminance 0.049; OKLCH L 38.5% C 0.176 H 284.4°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#40279B
RGB	rgb(64, 39, 155)
HSL	hsl(253, 60%, 38%)
HSV	hsv(253, 75%, 61%)
CMYK	cmyk(58.7%, 74.8%, 0%, 39.2%)
CIE-LAB	lab(26.47, 42.75, -59.04)
CIE-LCH	lch(26.47, 72.89, 305.91°)
OKLab	oklab(38.5% 0.0438 -0.17)
OKLCH	oklch(38.5% 0.176 284.4)
XYZ	xyz(8.7545, 4.9070, 31.4898)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40279B #829B27

analogous

#27489B #40279B #7A279B

triadic

#40279B #9B4027 #279B40

tetradic

#40279B #9B2748 #829B27 #279B7A

square

#40279B #9B2748 #829B27 #279B7A

split-complementary

#40279B #9B7A27 #489B27

monochromatic

#180E39 #2C1B6A #40279B #5433CC #7D64D8

Accessibility & contrast

On white

10.60

#40279B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#40279B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40279B

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40279B	#FFFFFF	#000000	##FFFFFF
##40279B	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00429E

Deuteranopia (green-blind)

#003B99

Tritanopia (blue-blind)

#0E475F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #40279b;
/* rgb */ color: rgb(64, 39, 155);
/* oklch */ color: oklch(38.5% 0.176 284.4);

Tailwind

colors: {
  custom: {
    50: '#8064ba',
    500: '#40279b',
    950: '#000000',
  },
}

SCSS

$custom: #40279b;
$custom-light: #8064ba;
$custom-dark: #000000;

JSON

{
  "hex": "#40279b",
  "rgb": {
    "r": 64,
    "g": 39,
    "b": 155
  },
  "hsl": {
    "h": 252.931,
    "s": 59.794,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38498,
    "c": 0.17559,
    "h": 284.4
  },
  "luminance": 0.04908
}

Semantic roles & 50–950 ramp

primary

#40279B

secondary

#AABE60

accent

#E345C1

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0B0612

muted

#7C7A81

Preview Lab

Preview with #40279B

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

Preview Lab → · Contrast checker → · Palette generator →