#28283A#28283A

#28283A is a dark, muted blue. Relative luminance 0.023; OKLCH L 28.5% C 0.033 H 284.1°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#28283A
RGB	rgb(40, 40, 58)
HSL	hsl(240, 18%, 19%)
HSV	hsv(240, 31%, 23%)
CMYK	cmyk(31%, 31%, 0%, 77.3%)
CIE-LAB	lab(16.86, 4.98, -11.52)
CIE-LCH	lch(16.86, 12.55, 293.36°)
OKLab	oklab(28.52% 0.008 -0.0318)
OKLCH	oklch(28.52% 0.033 284.1)
XYZ	xyz(2.3974, 2.2741, 4.3148)
Luminance	0.0227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28283A #3A3A28

analogous

#28313A #28283A #31283A

triadic

#28283A #3A2828 #283A28

tetradic

#28283A #3A2831 #3A3A28 #283A31

square

#28283A #3A2831 #3A3A28 #283A31

split-complementary

#28283A #3A3128 #313A28

monochromatic

#0C0C12 #0F0F16 #28283A #41415E #5A5A82

Accessibility & contrast

On white

14.43

#28283A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#28283A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28283A

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28283A	#FFFFFF	#000000	##FFFFFF
##28283A	1.00	14.43	1.45	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#232A3B

Deuteranopia (green-blind)

#23293A

Tritanopia (blue-blind)

#242B2E

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #28283a;
/* rgb */ color: rgb(40, 40, 58);
/* oklch */ color: oklch(28.5% 0.033 284.1);

Tailwind

colors: {
  custom: {
    50: '#626170',
    500: '#28283a',
    950: '#000000',
  },
}

SCSS

$custom: #28283a;
$custom-light: #626170;
$custom-dark: #000000;

JSON

{
  "hex": "#28283a",
  "rgb": {
    "r": 40,
    "g": 40,
    "b": 58
  },
  "hsl": {
    "h": 240,
    "s": 18.367,
    "l": 19.216
  },
  "oklch": {
    "l": 0.28518,
    "c": 0.03281,
    "h": 284.1
  },
  "luminance": 0.02274
}

Semantic roles & 50–950 ramp

primary

#28283A

secondary

#6B6B53

accent

#BB6DBB

background

#F5F5F6

surface

#EAE9EC

border

#C6C5C7

text

#050507

muted

#79797A

Preview Lab

Preview with #28283A

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

Preview Lab → · Contrast checker → · Palette generator →