#010308#010308

#010308 is a very dark, near-neutral blue. Relative luminance 0.001; OKLCH L 9.6% C 0.020 H 256.7°. Best body text is #FFFFFF at 20.63:1 contrast (WCAG AA passes).

Color values

HEX	#010308
RGB	rgb(1, 3, 8)
HSL	hsl(223, 78%, 2%)
HSV	hsv(223, 88%, 3%)
CMYK	cmyk(87.5%, 62.5%, 0%, 96.9%)
CIE-LAB	lab(0.80, 0.17, -2.08)
CIE-LCH	lch(0.80, 2.08, 274.75°)
OKLab	oklab(9.64% -0.0046 -0.0194)
OKLCH	oklch(9.64% 0.02 256.7)
XYZ	xyz(0.0889, 0.0891, 0.2422)
Luminance	0.0009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#010308 #080601

analogous

#010708 #010308 #030108

triadic

#010308 #080103 #030801

tetradic

#010308 #080107 #080601 #010803

square

#010308 #080107 #080601 #010803

split-complementary

#010308 #080301 #070801

monochromatic

#030A1B #030A1B #030A1B #08173E #0F2C75

Accessibility & contrast

On white

20.63

#010308 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.02

#010308 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #010308

20.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##010308	#FFFFFF	#000000	##FFFFFF
##010308	1.00	20.63	1.02	20.63
#FFFFFF	20.63	1.00	21.00	1.00
#000000	1.02	21.00	1.00	21.00
##FFFFFF	20.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#020308

Deuteranopia (green-blind)

#010308

Tritanopia (blue-blind)

#000405

Achromatopsia (no color)

#030303

Design tokens & code

CSS

--color: #010308;
/* rgb */ color: rgb(1, 3, 8);
/* oklch */ color: oklch(9.6% 0.020 256.7);

Tailwind

colors: {
  custom: {
    50: '#47484a',
    500: '#010308',
    950: '#000000',
  },
}

SCSS

$custom: #010308;
$custom-light: #47484a;
$custom-dark: #000000;

JSON

{
  "hex": "#010308",
  "rgb": {
    "r": 1,
    "g": 3,
    "b": 8
  },
  "hsl": {
    "h": 222.857,
    "s": 77.778,
    "l": 1.765
  },
  "oklch": {
    "l": 0.0964,
    "c": 0.01998,
    "h": 256.7
  },
  "luminance": 0.00089
}

Semantic roles & 50–950 ramp

primary

#010308

secondary

#4E3E17

accent

#BD34F4

background

#F3F4F4

surface

#E5E6E7

border

#C1C2C3

text

#000001

muted

#777777

Preview Lab

Preview with #010308

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

Preview Lab → · Contrast checker → · Palette generator →