#28197C#28197C

#28197C is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.155 H 279.4°. Best body text is #FFFFFF at 13.81:1 contrast (WCAG AA passes).

Color values

HEX	#28197C
RGB	rgb(40, 25, 124)
HSL	hsl(249, 66%, 29%)
HSV	hsv(249, 80%, 49%)
CMYK	cmyk(67.7%, 79.8%, 0%, 51.4%)
CIE-LAB	lab(18.37, 37.43, -53.11)
CIE-LCH	lch(18.37, 64.97, 305.17°)
OKLab	oklab(31.29% 0.0253 -0.1533)
OKLCH	oklch(31.29% 0.155 279.4)
XYZ	xyz(4.8596, 2.6012, 19.3109)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28197C #6D7C19

analogous

#193C7C #28197C #5A197C

triadic

#28197C #7C2819 #197C28

tetradic

#28197C #7C193C #6D7C19 #197C5A

square

#28197C #7C193C #6D7C19 #197C5A

split-complementary

#28197C #7C5A19 #3C7C19

monochromatic

#080519 #180F49 #28197C #3823AF #5038D7

Accessibility & contrast

On white

13.81

#28197C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#28197C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28197C

13.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28197C	#FFFFFF	#000000	##FFFFFF
##28197C	1.00	13.81	1.52	13.81
#FFFFFF	13.81	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307F

Deuteranopia (green-blind)

#00297A

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28197c;
/* rgb */ color: rgb(40, 25, 124);
/* oklch */ color: oklch(31.3% 0.155 279.4);

Tailwind

colors: {
  custom: {
    50: '#6f58a3',
    500: '#28197c',
    950: '#000000',
  },
}

SCSS

$custom: #28197c;
$custom-light: #6f58a3;
$custom-dark: #000000;

JSON

{
  "hex": "#28197c",
  "rgb": {
    "r": 40,
    "g": 25,
    "b": 124
  },
  "hsl": {
    "h": 249.091,
    "s": 66.443,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31285,
    "c": 0.15542,
    "h": 279.4
  },
  "luminance": 0.02602
}

Semantic roles & 50–950 ramp

primary

#28197C

secondary

#9FB040

accent

#E93ECF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #28197C

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

Preview Lab → · Contrast checker → · Palette generator →