#011731#011731

#011731 is a very dark, muted cyan. Relative luminance 0.008; OKLCH L 20.4% C 0.060 H 252.9°. Best body text is #FFFFFF at 17.98:1 contrast (WCAG AA passes).

Color values

HEX	#011731
RGB	rgb(1, 23, 49)
HSL	hsl(213, 96%, 10%)
HSV	hsv(213, 98%, 19%)
CMYK	cmyk(98%, 53.1%, 0%, 80.8%)
CIE-LAB	lab(7.60, 3.01, -19.87)
CIE-LCH	lch(7.60, 20.09, 278.61°)
OKLab	oklab(20.4% -0.0176 -0.0571)
OKLCH	oklch(20.4% 0.06 252.9)
XYZ	xyz(0.8731, 0.8409, 3.0214)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#011731 #311B01

analogous

#012F31 #011731 #030131

triadic

#011731 #310117 #173101

tetradic

#011731 #31012F #311B01 #013103

square

#011731 #31012F #311B01 #013103

split-complementary

#011731 #310301 #2F3101

monochromatic

#010E1E #010E1E #011731 #02336D #034FA9

Accessibility & contrast

On white

17.98

#011731 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#011731 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #011731

17.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##011731	#FFFFFF	#000000	##FFFFFF
##011731	1.00	17.98	1.17	17.98
#FFFFFF	17.98	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#091932

Deuteranopia (green-blind)

#021530

Tritanopia (blue-blind)

#001D21

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #011731;
/* rgb */ color: rgb(1, 23, 49);
/* oklch */ color: oklch(20.4% 0.060 252.9);

Tailwind

colors: {
  custom: {
    50: '#4a5369',
    500: '#011731',
    950: '#000000',
  },
}

SCSS

$custom: #011731;
$custom-light: #4a5369;
$custom-dark: #000000;

JSON

{
  "hex": "#011731",
  "rgb": {
    "r": 1,
    "g": 23,
    "b": 49
  },
  "hsl": {
    "h": 212.5,
    "s": 96,
    "l": 9.804
  },
  "oklch": {
    "l": 0.204,
    "c": 0.05974,
    "h": 252.9
  },
  "luminance": 0.00841
}

Semantic roles & 50–950 ramp

primary

#011731

secondary

#774B17

accent

#9D29FF

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010206

muted

#77787A

Preview Lab

Preview with #011731

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

Preview Lab → · Contrast checker → · Palette generator →