#010000
Closest named color: Black (#000000). oklch(4.2% 0.017 29.2), rgb(1, 0, 0).
Aa
White text reads best on this color (20.97:1).
About this color
#010000 is a very dark close to neutral grey. In OKLCH its lightness is 4%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Black (#000000), ΔE 0.046 away. White text reads best on it, at 20.97:1.
| Hue family | Neutrals |
| Lightness | very dark (4%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Black (#000000) |
| Black text | 1.00:1 |
| White text | 20.97:1 |
Values
| HEX | #010000 |
| RGB | rgb(1, 0, 0) |
| HSL | hsl(0, 100%, 0%) |
| OKLCH | oklch(4.2% 0.017 29.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #010000 | 20.97:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #010000 | 1.00:1 | Fails | Lc 0.0 | Not readable |
| #010000 text on white | 20.97:1 | AAA | Lc 106.0 | Preferred for body text |
| #010000 text on black | 1.00:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EEE8E7
oklch(93.5% 0.007 28.8)
-
Step 200
200
#E1D6D5
oklch(88.5% 0.012 23.7)
-
Step 300
300
#CEBCB9
oklch(80.9% 0.021 28.9)
-
Step 400
400
#B49995
oklch(70.6% 0.033 27.9)
-
Step 500
500
#A1807B
oklch(63% 0.042 28.3)
-
Step 600
600
#8C6A64
oklch(55.7% 0.045 30)
-
Step 700
700
#775853
oklch(49.1% 0.042 29.1)
-
Step 800
800
#614844
oklch(42.7% 0.035 29)
-
Step 900
900
#4F3C39
oklch(37.6% 0.027 28.7)
-
Step 950
950 (this color)
#010000
oklch(4.2% 0.017 29.2)
#010000 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #000000 | 0.046 |
| Deuteranopia (no green cones) | #000000 | 0.046 |
| Tritanopia (no blue cones) | #010000 | 0.000 |
| Achromatopsia (no color) | #000000 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010000
#010000
oklch(4.2% 0.017 29.2)
- #000000
#000000
oklch(0% 0 0)
Analogous
Neighbouring hues, 30° either side.
- #010000
#010000
oklch(4.2% 0.017 29.2)
- #010000
#010000
oklch(4.2% 0.017 29.2)
- #010000
#010000
oklch(4.2% 0.017 29.2)
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #010000, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Black #000000 ΔE 0.046
- Almost Black #070D0D ΔE 0.113
- Very Dark Brown #1D0200 ΔE 0.115
- Rich Navy #001219 ΔE 0.136
- Midnight #03012D ΔE 0.140
- Dark Navy Blue #00022E ΔE 0.142
- Very Dark Blue #000133 ΔE 0.152
- Dark Navy #000435 ΔE 0.159
Use #010000 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.