#170B13
Closest named color: Almost Black (#070D0D). oklch(17.1% 0.026 340.1), rgb(23, 11, 19).
Aa
White text reads best on this color (19.20:1).
About this color
#170B13 is a very dark close to neutral grey. In OKLCH its lightness is 17%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.039 away. White text reads best on it, at 19.20:1.
| Hue family | Neutrals |
| Lightness | very dark (17%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.09:1 |
| White text | 19.20:1 |
Values
| HEX | #170B13 |
| RGB | rgb(23, 11, 19) |
| HSL | hsl(320, 35%, 7%) |
| OKLCH | oklch(17.1% 0.026 340.1) |
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 #170B13 | 19.20:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #170B13 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #170B13 text on white | 19.20:1 | AAA | Lc 105.5 | Preferred for body text |
| #170B13 text on black | 1.09:1 | 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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EC
oklch(93.7% 0.008 337.4)
-
Step 200
200
#E1D5DD
oklch(88.5% 0.017 337.6)
-
Step 300
300
#CFB9C7
oklch(80.8% 0.031 339.4)
-
Step 400
400
#B695AA
oklch(70.6% 0.049 340)
-
Step 500
500
#A47B95
oklch(63.1% 0.062 340.7)
-
Step 600
600
#8E6480
oklch(55.6% 0.067 339.5)
-
Step 700
700
#79536C
oklch(49.2% 0.062 340.1)
-
Step 800
800
#624458
oklch(42.7% 0.051 339.5)
-
Step 900
900
#503948
oklch(37.6% 0.04 340)
-
Step 950
950 (this color)
#170B13
oklch(17.1% 0.026 340.1)
#170B13 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) | #0B0E13 | 0.027 |
| Deuteranopia (no green cones) | #0E0F13 | 0.023 |
| Tritanopia (no blue cones) | #180B0E | 0.011 |
| Achromatopsia (no color) | #0F0F0F | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170B13
#170B13
oklch(17.1% 0.026 340.1)
- #05130C
#05130C
oklch(17.1% 0.026 161.7)
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 #170B13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.039
- Very Dark Brown #1D0200 ΔE 0.048
- Rich Navy #001219 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.064
- Very Dark Purple #2A0134 ΔE 0.085
- Midnight #03012D ΔE 0.087
- Midnight Purple #280137 ΔE 0.088
- Dark Maroon #3C0008 ΔE 0.091
Use #170B13 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.