#4028B9#4028B9

#4028B9 is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.7% C 0.210 H 279.7°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#4028B9
RGB	rgb(64, 40, 185)
HSL	hsl(250, 64%, 44%)
HSV	hsv(250, 78%, 73%)
CMYK	cmyk(65.4%, 78.4%, 0%, 27.5%)
CIE-LAB	lab(29.69, 51.28, -71.79)
CIE-LCH	lch(29.69, 88.23, 305.54°)
OKLab	oklab(41.67% 0.0353 -0.2073)
OKLCH	oklch(41.67% 0.21 279.7)
XYZ	xyz(11.6273, 6.1094, 46.4560)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4028B9 #A1B928

analogous

#2859B9 #4028B9 #8928B9

triadic

#4028B9 #B94028 #28B940

tetradic

#4028B9 #B92859 #A1B928 #28B989

square

#4028B9 #B92859 #A1B928 #28B989

split-complementary

#4028B9 #B98928 #59B928

monochromatic

#1D1254 #2F1D87 #4028B9 #5F47D7 #8B79E2

Accessibility & contrast

On white

9.45

#4028B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#4028B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4028B9

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4028B9	#FFFFFF	#000000	##FFFFFF
##4028B9	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBD

Deuteranopia (green-blind)

#0040B6

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #4028b9;
/* rgb */ color: rgb(64, 40, 185);
/* oklch */ color: oklch(41.7% 0.210 279.7);

Tailwind

colors: {
  custom: {
    50: '#8566cf',
    500: '#4028b9',
    950: '#000000',
  },
}

SCSS

$custom: #4028b9;
$custom-light: #8566cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4028b9",
  "rgb": {
    "r": 64,
    "g": 40,
    "b": 185
  },
  "hsl": {
    "h": 249.931,
    "s": 64.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.41667,
    "c": 0.21027,
    "h": 279.7
  },
  "luminance": 0.0611
}

Semantic roles & 50–950 ramp

primary

#4028B9

secondary

#BCCA73

accent

#E740CC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0D0614

muted

#7D7A82

Preview Lab

Preview with #4028B9

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

Preview Lab → · Contrast checker → · Palette generator →