#40257E#40257E

#40257E is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.5% C 0.142 H 291.4°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#40257E
RGB	rgb(64, 37, 126)
HSL	hsl(258, 55%, 32%)
HSV	hsv(258, 71%, 49%)
CMYK	cmyk(49.2%, 70.6%, 0%, 50.6%)
CIE-LAB	lab(23.40, 35.06, -46.03)
CIE-LCH	lch(23.40, 57.86, 307.29°)
OKLab	oklab(35.5% 0.0517 -0.1319)
OKLCH	oklch(35.5% 0.142 291.4)
XYZ	xyz(6.5408, 3.9192, 20.1465)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 7.17

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40257E #637E25

analogous

#25377E #40257E #6D257E

triadic

#40257E #7E4025 #257E40

tetradic

#40257E #7E2537 #637E25 #257E6D

square

#40257E #7E2537 #637E25 #257E6D

split-complementary

#40257E #7E6D25 #377E25

monochromatic

#10091F #28174F #40257E #5833AD #7751CC

Accessibility & contrast

On white

11.77

#40257E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#40257E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40257E

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40257E	#FFFFFF	#000000	##FFFFFF
##40257E	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003981

Deuteranopia (green-blind)

#00367C

Tritanopia (blue-blind)

#2C3B4E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #40257e;
/* rgb */ color: rgb(64, 37, 126);
/* oklch */ color: oklch(35.5% 0.142 291.4);

Tailwind

colors: {
  custom: {
    50: '#7b62a4',
    500: '#40257e',
    950: '#000000',
  },
}

SCSS

$custom: #40257e;
$custom-light: #7b62a4;
$custom-dark: #000000;

JSON

{
  "hex": "#40257e",
  "rgb": {
    "r": 64,
    "g": 37,
    "b": 126
  },
  "hsl": {
    "h": 258.202,
    "s": 54.601,
    "l": 31.961
  },
  "oklch": {
    "l": 0.35499,
    "c": 0.14167,
    "h": 291.4
  },
  "luminance": 0.03919
}

Semantic roles & 50–950 ramp

primary

#40257E

secondary

#93B04F

accent

#DE4AB1

background

#F7F5FA

surface

#EEEAF4

border

#C9C6CE

text

#0A050F

muted

#7C797F

Preview Lab

Preview with #40257E

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

Preview Lab → · Contrast checker → · Palette generator →