#100C01
Closest named color: Almost Black (#070D0D). oklch(15.5% 0.028 95.2), rgb(16, 12, 1).
Aa
White text reads best on this color (19.53:1).
About this color
#100C01 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.032 away. White text reads best on it, at 19.53:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.53:1 |
Values
| HEX | #100C01 |
| RGB | rgb(16, 12, 1) |
| HSL | hsl(44, 88%, 3%) |
| OKLCH | oklch(15.5% 0.028 95.2) |
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 #100C01 | 19.53:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #100C01 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #100C01 text on white | 19.53:1 | AAA | Lc 105.7 | Preferred for body text |
| #100C01 text on black | 1.07:1 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE3
oklch(93.7% 0.01 93.6)
-
Step 200
200
#DDD9CC
oklch(88.5% 0.018 92.7)
-
Step 300
300
#C7C1A9
oklch(80.9% 0.033 95.5)
-
Step 400
400
#ABA17B
oklch(70.8% 0.054 95.1)
-
Step 500
500
#968959
oklch(63% 0.068 94.8)
-
Step 600
600
#81733E
oklch(55.6% 0.074 95)
-
Step 700
700
#6D6030
oklch(49% 0.069 94.5)
-
Step 800
800
#594F28
oklch(42.8% 0.058 95.3)
-
Step 900
900
#494125
oklch(37.6% 0.045 94)
-
Step 950
950 (this color)
#100C01
oklch(15.5% 0.028 95.2)
#100C01 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) | #0F0C00 | 0.005 |
| Deuteranopia (no green cones) | #100D01 | 0.004 |
| Tritanopia (no blue cones) | #120A09 | 0.027 |
| Achromatopsia (no color) | #0C0C0C | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100C01
#100C01
oklch(15.5% 0.028 95.2)
- #090B18
#090B18
oklch(15.5% 0.028 275.9)
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 #100C01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.032
- Very Dark Brown #1D0200 ΔE 0.047
- Rich Navy #001219 ΔE 0.055
- Rich Black #0D1B2A ΔE 0.088
- Dark Brown #341C02 ΔE 0.104
- Dark Maroon #3C0008 ΔE 0.112
- Jet #212529 ΔE 0.113
- Dark #1B2431 ΔE 0.117
Use #100C01 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.