#100C04
Closest named color: Almost Black (#070D0D). oklch(15.6% 0.019 87.6), rgb(16, 12, 4).
Aa
White text reads best on this color (19.50:1).
About this color
#100C04 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.025 away. White text reads best on it, at 19.50:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.50:1 |
Values
| HEX | #100C04 |
| RGB | rgb(16, 12, 4) |
| HSL | hsl(40, 60%, 4%) |
| OKLCH | oklch(15.6% 0.019 87.6) |
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 #100C04 | 19.50:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #100C04 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #100C04 text on white | 19.50:1 | AAA | Lc 105.7 | Preferred for body text |
| #100C04 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#ECEAE5
oklch(93.7% 0.007 88.6)
-
Step 200
200
#DDD9D0
oklch(88.6% 0.013 86.8)
-
Step 300
300
#C7C0B0
oklch(80.9% 0.023 87.2)
-
Step 400
400
#AAA087
oklch(70.7% 0.037 88.8)
-
Step 500
500
#968869
oklch(63.1% 0.047 86.5)
-
Step 600
600
#807250
oklch(55.6% 0.052 88.2)
-
Step 700
700
#6C5F41
oklch(49% 0.047 87.2)
-
Step 800
800
#584E36
oklch(42.7% 0.039 88)
-
Step 900
900
#48412F
oklch(37.7% 0.03 89.3)
-
Step 950
950 (this color)
#100C04
oklch(15.6% 0.019 87.6)
#100C04 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) | #0E0C04 | 0.004 |
| Deuteranopia (no green cones) | #0F0D04 | 0.004 |
| Tritanopia (no blue cones) | #120B0A | 0.017 |
| Achromatopsia (no color) | #0C0C0C | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100C04
#100C04
oklch(15.6% 0.019 87.6)
- #090C15
#090C15
oklch(15.6% 0.02 269.7)
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 #100C04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.025
- Very Dark Brown #1D0200 ΔE 0.045
- Rich Navy #001219 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.082
- Dark Brown #341C02 ΔE 0.104
- Midnight #03012D ΔE 0.108
- Dark Maroon #3C0008 ΔE 0.109
- Jet #212529 ΔE 0.109
Use #100C04 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.