#4028BC#4028BC

#4028BC is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 42.0% C 0.214 H 279.3°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#4028BC
RGB	rgb(64, 40, 188)
HSL	hsl(250, 65%, 45%)
HSV	hsv(250, 79%, 74%)
CMYK	cmyk(66%, 78.7%, 0%, 26.3%)
CIE-LAB	lab(30.00, 52.17, -73.05)
CIE-LCH	lch(30.00, 89.77, 305.54°)
OKLab	oklab(41.98% 0.0344 -0.2109)
OKLCH	oklch(41.98% 0.214 279.3)
XYZ	xyz(11.9473, 6.2374, 48.1415)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4028BC #A4BC28

analogous

#285ABC #4028BC #8A28BC

triadic

#4028BC #BC4028 #28BC40

tetradic

#4028BC #BC285A #A4BC28 #28BC8A

square

#4028BC #BC285A #A4BC28 #28BC8A

split-complementary

#4028BC #BC8A28 #5ABC28

monochromatic

#1E1357 #2F1D8A #4028BC #6049D8 #8C7BE3

Accessibility & contrast

On white

9.34

#4028BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#4028BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4028BC

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4028BC	#FFFFFF	#000000	##FFFFFF
##4028BC	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CC0

Deuteranopia (green-blind)

#0041B9

Tritanopia (blue-blind)

#005572

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #4028bc;
/* rgb */ color: rgb(64, 40, 188);
/* oklch */ color: oklch(42.0% 0.214 279.3);

Tailwind

colors: {
  custom: {
    50: '#8666d2',
    500: '#4028bc',
    950: '#000000',
  },
}

SCSS

$custom: #4028bc;
$custom-light: #8666d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4028bc",
  "rgb": {
    "r": 64,
    "g": 40,
    "b": 188
  },
  "hsl": {
    "h": 249.73,
    "s": 64.912,
    "l": 44.706
  },
  "oklch": {
    "l": 0.41982,
    "c": 0.21373,
    "h": 279.3
  },
  "luminance": 0.06238
}

Semantic roles & 50–950 ramp

primary

#4028BC

secondary

#BDCB75

accent

#E840CD

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0614

muted

#7E7A83

Preview Lab

Preview with #4028BC

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

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