#101017#101017

#101017 is a very dark, near-neutral blue. Relative luminance 0.005; OKLCH L 17.6% C 0.014 H 284.8°. Best body text is #FFFFFF at 18.94:1 contrast (WCAG AA passes).

Color values

HEX	#101017
RGB	rgb(16, 16, 23)
HSL	hsl(240, 18%, 8%)
HSV	hsv(240, 30%, 9%)
CMYK	cmyk(30.4%, 30.4%, 0%, 91%)
CIE-LAB	lab(4.90, 1.55, -4.22)
CIE-LCH	lch(4.90, 4.50, 290.18°)
OKLab	oklab(17.65% 0.0037 -0.0139)
OKLCH	oklch(17.65% 0.014 284.8)
XYZ	xyz(0.5536, 0.5426, 0.8860)
Luminance	0.0054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#101017 #171710

analogous

#101317 #101017 #131017

triadic

#101017 #171010 #101710

tetradic

#101017 #171013 #171710 #101713

square

#101017 #171013 #171710 #101713

split-complementary

#101017 #171310 #131710

monochromatic

#0D0D12 #0D0D12 #101017 #29293B #42425F

Accessibility & contrast

On white

18.94

#101017 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#101017 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101017

18.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##101017	#FFFFFF	#000000	##FFFFFF
##101017	1.00	18.94	1.11	18.94
#FFFFFF	18.94	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E1117

Deuteranopia (green-blind)

#0E1017

Tritanopia (blue-blind)

#0E1112

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #101017;
/* rgb */ color: rgb(16, 16, 23);
/* oklch */ color: oklch(17.6% 0.014 284.8);

Tailwind

colors: {
  custom: {
    50: '#4e4e53',
    500: '#101017',
    950: '#000000',
  },
}

SCSS

$custom: #101017;
$custom-light: #4e4e53;
$custom-dark: #000000;

JSON

{
  "hex": "#101017",
  "rgb": {
    "r": 16,
    "g": 16,
    "b": 23
  },
  "hsl": {
    "h": 240,
    "s": 17.949,
    "l": 7.647
  },
  "oklch": {
    "l": 0.1765,
    "c": 0.01438,
    "h": 284.8
  },
  "luminance": 0.00543
}

Semantic roles & 50–950 ramp

primary

#101017

secondary

#4A4A39

accent

#BB6DBB

background

#F4F4F4

surface

#E7E7E7

border

#C3C3C3

text

#010102

muted

#777778

Preview Lab

Preview with #101017

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

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