#010921#010921

#010921 is a very dark, muted blue. Relative luminance 0.003; OKLCH L 14.8% C 0.054 H 260.8°. Best body text is #FFFFFF at 19.77:1 contrast (WCAG AA passes).

Color values

HEX	#010921
RGB	rgb(1, 9, 33)
HSL	hsl(225, 94%, 7%)
HSV	hsv(225, 97%, 13%)
CMYK	cmyk(97%, 72.7%, 0%, 87.1%)
CIE-LAB	lab(2.81, 3.62, -15.27)
CIE-LCH	lch(2.81, 15.70, 283.34°)
OKLab	oklab(14.83% -0.0086 -0.0534)
OKLCH	oklch(14.83% 0.054 260.8)
XYZ	xyz(0.3846, 0.3116, 1.4784)
Luminance	0.0031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010921 #211901

analogous

#011921 #010921 #090121

triadic

#010921 #210109 #092101

tetradic

#010921 #210119 #211901 #012109

square

#010921 #210119 #211901 #012109

split-complementary

#010921 #210901 #192101

monochromatic

#01081E #01081E #010921 #03195C #052998

Accessibility & contrast

On white

19.77

#010921 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#010921 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010921

19.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010921	#FFFFFF	#000000	##FFFFFF
##010921	1.00	19.77	1.06	19.77
#FFFFFF	19.77	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000C22

Deuteranopia (green-blind)

#000921

Tritanopia (blue-blind)

#000F13

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #010921;
/* rgb */ color: rgb(1, 9, 33);
/* oklch */ color: oklch(14.8% 0.054 260.8);

Tailwind

colors: {
  custom: {
    50: '#464b5c',
    500: '#010921',
    950: '#000000',
  },
}

SCSS

$custom: #010921;
$custom-light: #464b5c;
$custom-dark: #000000;

JSON

{
  "hex": "#010921",
  "rgb": {
    "r": 1,
    "g": 9,
    "b": 33
  },
  "hsl": {
    "h": 225,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.14833,
    "c": 0.05413,
    "h": 260.8
  },
  "luminance": 0.00312
}

Semantic roles & 50–950 ramp

primary

#010921

secondary

#685415

accent

#C929FF

background

#F4F4F5

surface

#E6E7E9

border

#C2C3C5

text

#000104

muted

#777779

Preview Lab

Preview with #010921

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

Preview Lab → · Contrast checker → · Palette generator →