#28287F#28287F

#28287F is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.9% C 0.142 H 275.7°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#28287F
RGB	rgb(40, 40, 127)
HSL	hsl(240, 52%, 33%)
HSV	hsv(240, 69%, 50%)
CMYK	cmyk(68.5%, 68.5%, 0%, 50.2%)
CIE-LAB	lab(21.95, 29.40, -49.13)
CIE-LCH	lch(21.95, 57.26, 300.90°)
OKLab	oklab(33.93% 0.0141 -0.1418)
OKLCH	oklch(33.93% 0.142 275.7)
XYZ	xyz(5.4634, 3.5005, 20.4623)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28287F #7F7F28

analogous

#28537F #28287F #53287F

triadic

#28287F #7F2828 #287F28

tetradic

#28287F #7F2853 #7F7F28 #287F53

square

#28287F #7F2853 #7F7F28 #287F53

split-complementary

#28287F #7F5328 #537F28

monochromatic

#0B0B22 #191950 #28287F #3737AE #5757CA

Accessibility & contrast

On white

12.35

#28287F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#28287F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28287F

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28287F	#FFFFFF	#000000	##FFFFFF
##28287F	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003882

Deuteranopia (green-blind)

#00317D

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #28287f;
/* rgb */ color: rgb(40, 40, 127);
/* oklch */ color: oklch(33.9% 0.142 275.7);

Tailwind

colors: {
  custom: {
    50: '#6e62a5',
    500: '#28287f',
    950: '#000000',
  },
}

SCSS

$custom: #28287f;
$custom-light: #6e62a5;
$custom-dark: #000000;

JSON

{
  "hex": "#28287f",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 127
  },
  "hsl": {
    "h": 240,
    "s": 52.096,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3393,
    "c": 0.14249,
    "h": 275.7
  },
  "luminance": 0.03501
}

Semantic roles & 50–950 ramp

primary

#28287F

secondary

#AFAF54

accent

#DC4CDC

background

#F7F5FA

surface

#EDEAF4

border

#C8C6CE

text

#08050F

muted

#7B797F

Preview Lab

Preview with #28287F

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

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