#170000
Closest named color: Very Dark Brown (#1D0200). oklch(12.8% 0.053 29.2), rgb(23, 0, 0).
Aa
White text reads best on this color (20.26:1).
About this color
#170000 is a very dark, muted red. In OKLCH its lightness is 13%, its chroma 0.053 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.023 away. White text reads best on it, at 20.26:1.
| Hue family | Reds |
| Lightness | very dark (13%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.03:1 |
| White text | 20.26:1 |
Values
| HEX | #170000 |
| RGB | rgb(23, 0, 0) |
| HSL | hsl(0, 100%, 5%) |
| OKLCH | oklch(12.8% 0.053 29.2) |
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 #170000 | 20.26:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #170000 | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #170000 text on white | 20.26:1 | AAA | Lc 105.7 | Preferred for body text |
| #170000 text on black | 1.03:1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E3
oklch(93.7% 0.018 30.3)
-
Step 200
200
#EFD1CC
oklch(88.4% 0.034 29)
-
Step 300
300
#E6B2A9
oklch(80.8% 0.062 29.7)
-
Step 400
400
#D8887C
oklch(70.7% 0.101 29.1)
-
Step 500
500
#CB685B
oklch(63% 0.128 28.9)
-
Step 600
600
#B64E41
oklch(55.6% 0.138 29.4)
-
Step 700
700
#9D3E33
oklch(49.2% 0.129 29.2)
-
Step 800
800
#7F342B
oklch(42.7% 0.106 29.1)
-
Step 900
900
#672E27
oklch(37.8% 0.084 28.8)
-
Step 950
950 (this color)
#170000
oklch(12.8% 0.053 29.2)
#170000 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) | #040300 | 0.059 |
| Deuteranopia (no green cones) | #0A0800 | 0.052 |
| Tritanopia (no blue cones) | #1B0000 | 0.012 |
| Achromatopsia (no color) | #060606 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170000
#170000
oklch(12.8% 0.053 29.2)
- #00090C
#00090C
oklch(12.8% 0.022 212.5)
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 #170000, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.023
- Almost Black #070D0D ΔE 0.067
- Rich Navy #001219 ΔE 0.093
- Dark Maroon #3C0008 ΔE 0.104
- Deep Brown #410200 ΔE 0.117
- Rich Black #0D1B2A ΔE 0.122
- Midnight #03012D ΔE 0.123
- Very Dark Purple #2A0134 ΔE 0.125
Use #170000 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.