#581EB3#581EB3

#581EB3 is a dark, highly saturated violet. Relative luminance 0.063; OKLCH L 42.3% C 0.210 H 292.3°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#581EB3
RGB	rgb(88, 30, 179)
HSL	hsl(263, 71%, 41%)
HSV	hsv(263, 83%, 70%)
CMYK	cmyk(50.8%, 83.2%, 0%, 29.8%)
CIE-LAB	lab(30.05, 56.60, -67.54)
CIE-LCH	lch(30.05, 88.12, 309.96°)
OKLab	oklab(42.32% 0.0797 -0.194)
OKLCH	oklch(42.32% 0.21 292.3)
XYZ	xyz(12.6232, 6.2574, 43.1818)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#581EB3 #79B31E

analogous

#1E2EB3 #581EB3 #A21EB3

triadic

#581EB3 #B3581E #1EB358

tetradic

#581EB3 #B31E2E #79B31E #1EB3A2

square

#581EB3 #B31E2E #79B31E #1EB3A2

split-complementary

#581EB3 #B3A21E #2EB31E

monochromatic

#240C4A #3E157F #581EB3 #7432DD #9866E5

Accessibility & contrast

On white

9.33

#581EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#581EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #581EB3

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##581EB3	#FFFFFF	#000000	##FFFFFF
##581EB3	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049B7

Deuteranopia (green-blind)

#0044B0

Tritanopia (blue-blind)

#394B6B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #581eb3;
/* rgb */ color: rgb(88, 30, 179);
/* oklch */ color: oklch(42.3% 0.210 292.3);

Tailwind

colors: {
  custom: {
    50: '#9163cb',
    500: '#581eb3',
    950: '#000000',
  },
}

SCSS

$custom: #581eb3;
$custom-light: #9163cb;
$custom-dark: #000000;

JSON

{
  "hex": "#581eb3",
  "rgb": {
    "r": 88,
    "g": 30,
    "b": 179
  },
  "hsl": {
    "h": 263.356,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.42316,
    "c": 0.20978,
    "h": 292.3
  },
  "luminance": 0.06258
}

Semantic roles & 50–950 ramp

primary

#581EB3

secondary

#A2CB62

accent

#EE3AA8

background

#F9F6FC

surface

#F2EBF9

border

#CCC6D2

text

#0E0613

muted

#7E7A82

Preview Lab

Preview with #581EB3

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

Preview Lab → · Contrast checker → · Palette generator →