#28303E#28303E

#28303E is a dark, muted blue. Relative luminance 0.029; OKLCH L 30.8% C 0.028 H 261.5°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#28303E
RGB	rgb(40, 48, 62)
HSL	hsl(218, 22%, 20%)
HSV	hsv(218, 35%, 24%)
CMYK	cmyk(35.5%, 22.6%, 0%, 75.7%)
CIE-LAB	lab(19.69, 0.61, -9.95)
CIE-LCH	lch(19.69, 9.96, 273.49°)
OKLab	oklab(30.78% -0.0041 -0.0274)
OKLCH	oklch(30.78% 0.028 261.5)
XYZ	xyz(2.8013, 2.9127, 4.9711)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#28303E #3E3628

analogous

#283B3E #28303E #2B283E

triadic

#28303E #3E2830 #303E28

tetradic

#28303E #3E283B #3E3628 #283E2B

square

#28303E #3E283B #3E3628 #283E2B

split-complementary

#28303E #3E2B28 #3B3E28

monochromatic

#0C0E13 #101319 #28303E #404D63 #586A88

Accessibility & contrast

On white

13.27

#28303E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#28303E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #28303E

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##28303E	#FFFFFF	#000000	##FFFFFF
##28303E	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B313F

Deuteranopia (green-blind)

#292F3E

Tritanopia (blue-blind)

#223335

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #28303e;
/* rgb */ color: rgb(40, 48, 62);
/* oklch */ color: oklch(30.8% 0.028 261.5);

Tailwind

colors: {
  custom: {
    50: '#626873',
    500: '#28303e',
    950: '#000000',
  },
}

SCSS

$custom: #28303e;
$custom-light: #626873;
$custom-dark: #000000;

JSON

{
  "hex": "#28303e",
  "rgb": {
    "r": 40,
    "g": 48,
    "b": 62
  },
  "hsl": {
    "h": 218.182,
    "s": 21.569,
    "l": 20
  },
  "oklch": {
    "l": 0.30781,
    "c": 0.02769,
    "h": 261.5
  },
  "luminance": 0.02913
}

Semantic roles & 50–950 ramp

primary

#28303E

secondary

#706552

accent

#9F6ABE

background

#F5F6F6

surface

#EAEBEC

border

#C6C6C7

text

#050608

muted

#797A7B

Preview Lab

Preview with #28303E

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

Preview Lab → · Contrast checker → · Palette generator →