#100A03
Closest named color: Almost Black (#070D0D). oklch(15% 0.021 77.6), rgb(16, 10, 3).
Aa
White text reads best on this color (19.68:1).
About this color
#100A03 is a very dark close to neutral grey. In OKLCH its lightness is 15%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.027 away. White text reads best on it, at 19.68:1.
| Hue family | Neutrals |
| Lightness | very dark (15%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.06:1 |
| White text | 19.68:1 |
Values
| HEX | #100A03 |
| RGB | rgb(16, 10, 3) |
| HSL | hsl(32, 68%, 4%) |
| OKLCH | oklch(15% 0.021 77.6) |
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 #100A03 | 19.68:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #100A03 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #100A03 text on white | 19.68:1 | AAA | Lc 105.8 | Preferred for body text |
| #100A03 text on black | 1.06:1 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#ECE9E5
oklch(93.5% 0.006 75.4)
-
Step 200
200
#DED8CF
oklch(88.4% 0.014 78.3)
-
Step 300
300
#CABFAF
oklch(80.9% 0.025 77.4)
-
Step 400
400
#AE9E86
oklch(70.7% 0.039 78)
-
Step 500
500
#9B8667
oklch(63.1% 0.051 77.3)
-
Step 600
600
#85704F
oklch(55.7% 0.054 78.6)
-
Step 700
700
#715D40
oklch(49.1% 0.05 76.4)
-
Step 800
800
#5C4C35
oklch(42.7% 0.041 76.3)
-
Step 900
900
#4B402E
oklch(37.8% 0.033 79.7)
-
Step 950
950 (this color)
#100A03
oklch(15% 0.021 77.6)
#100A03 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) | #0C0A03 | 0.009 |
| Deuteranopia (no green cones) | #0E0C03 | 0.009 |
| Tritanopia (no blue cones) | #120808 | 0.019 |
| Achromatopsia (no color) | #0B0B0B | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #100A03
#100A03
oklch(15% 0.021 77.6)
- #060B14
#060B14
oklch(14.9% 0.022 259.6)
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 #100A03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.027
- Very Dark Brown #1D0200 ΔE 0.041
- Rich Navy #001219 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.088
- Midnight #03012D ΔE 0.108
- Dark Brown #341C02 ΔE 0.109
- Dark Navy Blue #00022E ΔE 0.111
- Dark Maroon #3C0008 ΔE 0.111
Use #100A03 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.