#101028#101028

#101028 is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.8% C 0.048 H 280.8°. Best body text is #FFFFFF at 18.64:1 contrast (WCAG AA passes).

Color values

HEX	#101028
RGB	rgb(16, 16, 40)
HSL	hsl(240, 43%, 11%)
HSV	hsv(240, 60%, 16%)
CMYK	cmyk(60%, 60%, 0%, 84.3%)
CIE-LAB	lab(5.73, 7.35, -16.08)
CIE-LCH	lch(5.73, 17.68, 294.57°)
OKLab	oklab(18.84% 0.009 -0.0469)
OKLCH	oklch(18.84% 0.048 280.8)
XYZ	xyz(0.7819, 0.6339, 2.0882)
Luminance	0.0063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 8.09

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101028 #282810

analogous

#101C28 #101028 #1C1028

triadic

#101028 #281010 #102810

tetradic

#101028 #28101C #282810 #10281C

square

#101028 #28101C #282810 #10281C

split-complementary

#101028 #281C10 #1C2810

monochromatic

#090916 #090916 #101028 #212154 #33337F

Accessibility & contrast

On white

18.64

#101028 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#101028 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101028

18.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101028	#FFFFFF	#000000	##FFFFFF
##101028	1.00	18.64	1.13	18.64
#FFFFFF	18.64	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#061429

Deuteranopia (green-blind)

#051227

Tritanopia (blue-blind)

#08151A

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #101028;
/* rgb */ color: rgb(16, 16, 40);
/* oklch */ color: oklch(18.8% 0.048 280.8);

Tailwind

colors: {
  custom: {
    50: '#4f4e62',
    500: '#101028',
    950: '#000000',
  },
}

SCSS

$custom: #101028;
$custom-light: #4f4e62;
$custom-dark: #000000;

JSON

{
  "hex": "#101028",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 40
  },
  "hsl": {
    "h": 240,
    "s": 42.857,
    "l": 10.98
  },
  "oklch": {
    "l": 0.18836,
    "c": 0.04778,
    "h": 280.8
  },
  "luminance": 0.00634
}

Semantic roles & 50–950 ramp

primary

#101028

secondary

#606034

accent

#D355D3

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#020105

muted

#787779

Preview Lab

Preview with #101028

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

Preview Lab → · Contrast checker → · Palette generator →