#171803
Closest named color: Almost Black (#070D0D). oklch(20.2% 0.038 111.7), rgb(23, 24, 3).
Aa
White text reads best on this color (17.97:1).
About this color
#171803 is a very dark, muted brown. In OKLCH its lightness is 20%, its chroma 0.038 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.063 away. White text reads best on it, at 17.97:1.
| Hue family | Browns |
| Lightness | very dark (20%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.16:1 |
| White text | 17.97:1 |
Values
| HEX | #171803 |
| RGB | rgb(23, 24, 3) |
| HSL | hsl(63, 78%, 5%) |
| OKLCH | oklch(20.2% 0.038 111.7) |
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 #171803 | 17.97:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #171803 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #171803 text on white | 17.97:1 | AAA | Lc 104.7 | Preferred for body text |
| #171803 text on black | 1.16:1 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#EAEBE1
oklch(93.7% 0.013 111.3)
-
Step 200
200
#D9DBC8
oklch(88.5% 0.026 111.8)
-
Step 300
300
#C1C4A3
oklch(80.9% 0.045 111.6)
-
Step 400
400
#A1A571
oklch(70.6% 0.071 111.8)
-
Step 500
500
#8B8F4A
oklch(63.1% 0.092 111.7)
-
Step 600
600
#75792B
oklch(55.6% 0.101 112)
-
Step 700
700
#62661D
oklch(49.2% 0.094 112.4)
-
Step 800
800
#50531B
oklch(42.7% 0.077 112.1)
-
Step 900
900
#42451C
oklch(37.7% 0.061 112.8)
-
Step 950
950 (this color)
#171803
oklch(20.2% 0.038 111.7)
#171803 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) | #1B1602 | 0.010 |
| Deuteranopia (no green cones) | #1B1704 | 0.010 |
| Tritanopia (no blue cones) | #191613 | 0.033 |
| Achromatopsia (no color) | #171717 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171803
#171803
oklch(20.2% 0.038 111.7)
- #171326
#171326
oklch(20.2% 0.038 292.4)
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 #171803, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.063
- Dark Brown #341C02 ΔE 0.065
- Rich Navy #001219 ΔE 0.066
- Rich Black #0D1B2A ΔE 0.071
- Jet #212529 ΔE 0.075
- Very Dark Brown #1D0200 ΔE 0.078
- Dark Forest Green #002D04 ΔE 0.079
- Very Dark Green #062E03 ΔE 0.081
Use #171803 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.