#28239E#28239E

#28239E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.4% C 0.188 H 273.6°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#28239E
RGB	rgb(40, 35, 158)
HSL	hsl(242, 64%, 38%)
HSV	hsv(242, 78%, 62%)
CMYK	cmyk(74.7%, 77.8%, 0%, 38%)
CIE-LAB	lab(24.07, 43.13, -64.90)
CIE-LCH	lch(24.07, 77.92, 303.61°)
OKLab	oklab(36.41% 0.0117 -0.1878)
OKLCH	oklch(36.41% 0.188 273.6)
XYZ	xyz(7.6456, 4.1210, 32.7336)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28239E #999E23

analogous

#235B9E #28239E #65239E

triadic

#28239E #9E2823 #239E28

tetradic

#28239E #9E235B #999E23 #239E65

square

#28239E #9E235B #999E23 #239E65

split-complementary

#28239E #9E6523 #5B9E23

monochromatic

#0F0D3A #1B186C #28239E #352ED0 #6560DC

Accessibility & contrast

On white

11.51

#28239E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#28239E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28239E

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28239E	#FFFFFF	#000000	##FFFFFF
##28239E	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA1

Deuteranopia (green-blind)

#00339C

Tritanopia (blue-blind)

#00485F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #28239e;
/* rgb */ color: rgb(40, 35, 158);
/* oklch */ color: oklch(36.4% 0.188 273.6);

Tailwind

colors: {
  custom: {
    50: '#7660bc',
    500: '#28239e',
    950: '#000000',
  },
}

SCSS

$custom: #28239e;
$custom-light: #7660bc;
$custom-dark: #000000;

JSON

{
  "hex": "#28239e",
  "rgb": {
    "r": 40,
    "g": 35,
    "b": 158
  },
  "hsl": {
    "h": 242.439,
    "s": 63.731,
    "l": 37.843
  },
  "oklch": {
    "l": 0.36407,
    "c": 0.18813,
    "h": 273.6
  },
  "luminance": 0.04122
}

Semantic roles & 50–950 ramp

primary

#28239E

secondary

#BDC15C

accent

#E741E0

background

#F7F5FB

surface

#EEEAF7

border

#C9C6D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #28239E

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

Preview Lab → · Contrast checker → · Palette generator →