#100001
Closest named color: Very Dark Brown (#1D0200). oklch(10.9% 0.044 19.8), rgb(16, 0, 1).
Aa
White text reads best on this color (20.53:1).
About this color
#100001 is a very dark, muted red. In OKLCH its lightness is 11%, its chroma 0.044 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.045 away. White text reads best on it, at 20.53:1.
| Hue family | Reds |
| Lightness | very dark (11%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.02:1 |
| White text | 20.53:1 |
Values
| HEX | #100001 |
| RGB | rgb(16, 0, 1) |
| HSL | hsl(356, 100%, 3%) |
| OKLCH | oklch(10.9% 0.044 19.8) |
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 #100001 | 20.53:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #100001 | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #100001 text on white | 20.53:1 | AAA | Lc 105.9 | Preferred for body text |
| #100001 text on black | 1.02:1 | 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
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F4E6E6
oklch(93.6% 0.015 17.4)
-
Step 200
200
#ECD2D1
oklch(88.5% 0.029 20.4)
-
Step 300
300
#E1B4B3
oklch(81% 0.052 19.8)
-
Step 400
400
#D08C8B
oklch(70.8% 0.083 20.3)
-
Step 500
500
#C16E6F
oklch(63.1% 0.106 19.7)
-
Step 600
600
#AD5457
oklch(55.6% 0.117 19.5)
-
Step 700
700
#944447
oklch(49.1% 0.108 19.6)
-
Step 800
800
#78393A
oklch(42.7% 0.088 20.5)
-
Step 900
900
#613132
oklch(37.6% 0.069 19.6)
-
Step 950
950 (this color)
#100001
oklch(10.9% 0.044 19.8)
#100001 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) | #020201 | 0.051 |
| Deuteranopia (no green cones) | #060501 | 0.045 |
| Tritanopia (no blue cones) | #130000 | 0.012 |
| Achromatopsia (no color) | #040404 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100001
#100001
oklch(10.9% 0.044 19.8)
- #000606
#000606
oklch(11.1% 0.019 194.8)
Analogous
Neighbouring hues, 30° either side.
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 #100001, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.045
- Almost Black #070D0D ΔE 0.069
- Rich Navy #001219 ΔE 0.095
- Midnight #03012D ΔE 0.115
- Black #000000 ΔE 0.118
- Dark Navy Blue #00022E ΔE 0.120
- Dark Maroon #3C0008 ΔE 0.125
- Rich Black #0D1B2A ΔE 0.130
Use #100001 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.