#010B15#010B15

#010B15 is a very dark, muted cyan. Relative luminance 0.003; OKLCH L 14.3% C 0.030 H 241.7°. Best body text is #FFFFFF at 19.81:1 contrast (WCAG AA passes).

Color values

HEX	#010B15
RGB	rgb(1, 11, 21)
HSL	hsl(210, 91%, 4%)
HSV	hsv(210, 95%, 8%)
CMYK	cmyk(95.2%, 47.6%, 0%, 91.8%)
CIE-LAB	lab(2.71, -0.72, -6.10)
CIE-LCH	lch(2.71, 6.14, 263.28°)
OKLab	oklab(14.34% -0.0141 -0.0263)
OKLCH	oklch(14.34% 0.03 241.7)
XYZ	xyz(0.2675, 0.2999, 0.7531)
Luminance	0.0030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010B15 #150B01

analogous

#011515 #010B15 #010115

triadic

#010B15 #15010B #0B1501

tetradic

#010B15 #150115 #150B01 #011501

square

#010B15 #150115 #150B01 #011501

split-complementary

#010B15 #150101 #151501

monochromatic

#010F1D #010F1D #010F1D #042A4F #07488A

Accessibility & contrast

On white

19.81

#010B15 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#010B15 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010B15

19.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010B15	#FFFFFF	#000000	##FFFFFF
##010B15	1.00	19.81	1.06	19.81
#FFFFFF	19.81	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#070B15

Deuteranopia (green-blind)

#040915

Tritanopia (blue-blind)

#000D0F

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #010b15;
/* rgb */ color: rgb(1, 11, 21);
/* oklch */ color: oklch(14.3% 0.030 241.7);

Tailwind

colors: {
  custom: {
    50: '#474c52',
    500: '#010b15',
    950: '#000000',
  },
}

SCSS

$custom: #010b15;
$custom-light: #474c52;
$custom-dark: #000000;

JSON

{
  "hex": "#010b15",
  "rgb": {
    "r": 1,
    "g": 11,
    "b": 21
  },
  "hsl": {
    "h": 210,
    "s": 90.909,
    "l": 4.314
  },
  "oklch": {
    "l": 0.14338,
    "c": 0.02982,
    "h": 241.7
  },
  "luminance": 0.003
}

Semantic roles & 50–950 ramp

primary

#010B15

secondary

#5D3915

accent

#9429FF

background

#F3F4F4

surface

#E5E7E7

border

#C1C3C3

text

#000102

muted

#777778

Preview Lab

Preview with #010B15

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

Preview Lab → · Contrast checker → · Palette generator →