#28197B#28197B

#28197B is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.2% C 0.154 H 279.5°. Best body text is #FFFFFF at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#28197B
RGB	rgb(40, 25, 123)
HSL	hsl(249, 66%, 29%)
HSV	hsv(249, 80%, 48%)
CMYK	cmyk(67.5%, 79.7%, 0%, 51.8%)
CIE-LAB	lab(18.26, 37.10, -52.65)
CIE-LCH	lch(18.26, 64.41, 305.17°)
OKLab	oklab(31.17% 0.0255 -0.152)
OKLCH	oklch(31.17% 0.154 279.5)
XYZ	xyz(4.7967, 2.5761, 18.9795)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28197B #6C7B19

analogous

#193B7B #28197B #59197B

triadic

#28197B #7B2819 #197B28

tetradic

#28197B #7B193B #6C7B19 #197B59

square

#28197B #7B193B #6C7B19 #197B59

split-complementary

#28197B #7B5919 #3B7B19

monochromatic

#080519 #170F48 #28197B #3923AE #5038D7

Accessibility & contrast

On white

13.86

#28197B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#28197B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28197B

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28197B	#FFFFFF	#000000	##FFFFFF
##28197B	1.00	13.86	1.52	13.86
#FFFFFF	13.86	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307E

Deuteranopia (green-blind)

#002979

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #28197b;
/* rgb */ color: rgb(40, 25, 123);
/* oklch */ color: oklch(31.2% 0.154 279.5);

Tailwind

colors: {
  custom: {
    50: '#6f58a2',
    500: '#28197b',
    950: '#000000',
  },
}

SCSS

$custom: #28197b;
$custom-light: #6f58a2;
$custom-dark: #000000;

JSON

{
  "hex": "#28197b",
  "rgb": {
    "r": 40,
    "g": 25,
    "b": 123
  },
  "hsl": {
    "h": 249.184,
    "s": 66.216,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31174,
    "c": 0.15415,
    "h": 279.5
  },
  "luminance": 0.02576
}

Semantic roles & 50–950 ramp

primary

#28197B

secondary

#9EAF40

accent

#E93FCF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #28197B

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

Preview Lab → · Contrast checker → · Palette generator →