#28219B#28219B

#28219B is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.8% C 0.186 H 274.1°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#28219B
RGB	rgb(40, 33, 155)
HSL	hsl(243, 65%, 37%)
HSV	hsv(243, 79%, 61%)
CMYK	cmyk(74.2%, 78.7%, 0%, 39.2%)
CIE-LAB	lab(23.35, 43.23, -64.24)
CIE-LCH	lch(23.35, 77.44, 303.94°)
OKLab	oklab(35.81% 0.0133 -0.1858)
OKLCH	oklch(35.81% 0.186 274.1)
XYZ	xyz(7.3334, 3.9046, 31.3712)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28219B #949B21

analogous

#21579B #28219B #65219B

triadic

#28219B #9B2821 #219B28

tetradic

#28219B #9B2157 #949B21 #219B65

square

#28219B #9B2157 #949B21 #219B65

split-complementary

#28219B #9B6521 #579B21

monochromatic

#0E0C36 #1B1669 #28219B #352CCD #625ADC

Accessibility & contrast

On white

11.79

#28219B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#28219B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28219B

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28219B	#FFFFFF	#000000	##FFFFFF
##28219B	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9E

Deuteranopia (green-blind)

#003299

Tritanopia (blue-blind)

#00465D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #28219b;
/* rgb */ color: rgb(40, 33, 155);
/* oklch */ color: oklch(35.8% 0.186 274.1);

Tailwind

colors: {
  custom: {
    50: '#755fba',
    500: '#28219b',
    950: '#000000',
  },
}

SCSS

$custom: #28219b;
$custom-light: #755fba;
$custom-dark: #000000;

JSON

{
  "hex": "#28219b",
  "rgb": {
    "r": 40,
    "g": 33,
    "b": 155
  },
  "hsl": {
    "h": 243.443,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35806,
    "c": 0.18631,
    "h": 274.1
  },
  "luminance": 0.03905
}

Semantic roles & 50–950 ramp

primary

#28219B

secondary

#BAC058

accent

#E840DE

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #28219B

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

Preview Lab → · Contrast checker → · Palette generator →