#4028B0#4028B0

#4028B0 is a dark, vivid violet. Relative luminance 0.057; OKLCH L 40.7% C 0.200 H 280.9°. Best body text is #FFFFFF at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#4028B0
RGB	rgb(64, 40, 176)
HSL	hsl(251, 63%, 42%)
HSV	hsv(251, 77%, 69%)
CMYK	cmyk(63.6%, 77.3%, 0%, 31%)
CIE-LAB	lab(28.75, 48.59, -67.98)
CIE-LCH	lch(28.75, 83.56, 305.56°)
OKLab	oklab(40.73% 0.0377 -0.1962)
OKLCH	oklch(40.73% 0.2 280.9)
XYZ	xyz(10.7071, 5.7413, 41.6098)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4028B0 #98B028

analogous

#2854B0 #4028B0 #8428B0

triadic

#4028B0 #B04028 #28B040

tetradic

#4028B0 #B02854 #98B028 #28B084

square

#4028B0 #B02854 #98B028 #28B084

split-complementary

#4028B0 #B08428 #54B028

monochromatic

#1C114C #2E1D7E #4028B0 #5B41D4 #8673DF

Accessibility & contrast

On white

9.77

#4028B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#4028B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4028B0

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4028B0	#FFFFFF	#000000	##FFFFFF
##4028B0	1.00	9.77	2.15	9.77
#FFFFFF	9.77	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B4

Deuteranopia (green-blind)

#003FAE

Tritanopia (blue-blind)

#00506B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #4028b0;
/* rgb */ color: rgb(64, 40, 176);
/* oklch */ color: oklch(40.7% 0.200 280.9);

Tailwind

colors: {
  custom: {
    50: '#8466c9',
    500: '#4028b0',
    950: '#000000',
  },
}

SCSS

$custom: #4028b0;
$custom-light: #8466c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4028b0",
  "rgb": {
    "r": 64,
    "g": 40,
    "b": 176
  },
  "hsl": {
    "h": 250.588,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.40734,
    "c": 0.19976,
    "h": 280.9
  },
  "luminance": 0.05742
}

Semantic roles & 50–950 ramp

primary

#4028B0

secondary

#B7C66D

accent

#E642C9

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #4028B0

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

Preview Lab → · Contrast checker → · Palette generator →