#28257F#28257F

#28257F is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.4% C 0.146 H 276.5°. Best body text is #FFFFFF at 12.64:1 contrast (WCAG AA passes).

Color values

HEX	#28257F
RGB	rgb(40, 37, 127)
HSL	hsl(242, 55%, 32%)
HSV	hsv(242, 71%, 50%)
CMYK	cmyk(68.5%, 70.9%, 0%, 50.2%)
CIE-LAB	lab(21.23, 31.34, -50.31)
CIE-LCH	lch(21.23, 59.27, 301.92°)
OKLab	oklab(33.41% 0.0164 -0.1452)
OKLCH	oklch(33.41% 0.146 276.5)
XYZ	xyz(5.3662, 3.3061, 20.4299)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28257F #7C7F25

analogous

#254F7F #28257F #55257F

triadic

#28257F #7F2825 #257F28

tetradic

#28257F #7F254F #7C7F25 #257F55

square

#28257F #7F254F #7C7F25 #257F55

split-complementary

#28257F #7F5525 #4F7F25

monochromatic

#0A0920 #191750 #28257F #3733AE #5652CD

Accessibility & contrast

On white

12.64

#28257F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#28257F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28257F

12.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28257F	#FFFFFF	#000000	##FFFFFF
##28257F	1.00	12.64	1.66	12.64
#FFFFFF	12.64	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003782

Deuteranopia (green-blind)

#002F7D

Tritanopia (blue-blind)

#003D4F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #28257f;
/* rgb */ color: rgb(40, 37, 127);
/* oklch */ color: oklch(33.4% 0.146 276.5);

Tailwind

colors: {
  custom: {
    50: '#6e60a5',
    500: '#28257f',
    950: '#000000',
  },
}

SCSS

$custom: #28257f;
$custom-light: #6e60a5;
$custom-dark: #000000;

JSON

{
  "hex": "#28257f",
  "rgb": {
    "r": 40,
    "g": 37,
    "b": 127
  },
  "hsl": {
    "h": 242,
    "s": 54.878,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33412,
    "c": 0.14617,
    "h": 276.5
  },
  "luminance": 0.03307
}

Semantic roles & 50–950 ramp

primary

#28257F

secondary

#ADB14F

accent

#DE4AD9

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #28257F

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

Preview Lab → · Contrast checker → · Palette generator →