#170310
Closest named color: Very Dark Brown (#1D0200). oklch(14.8% 0.047 342.2), rgb(23, 3, 16).
Aa
White text reads best on this color (19.86:1).
About this color
#170310 is a very dark, muted purple. In OKLCH its lightness is 15%, its chroma 0.047 and its hue 342°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.045 away. White text reads best on it, at 19.86:1.
| Hue family | Purples |
| Lightness | very dark (15%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.05:1 |
| White text | 19.86:1 |
Values
| HEX | #170310 |
| RGB | rgb(23, 3, 16) |
| HSL | hsl(321, 77%, 5%) |
| OKLCH | oklch(14.8% 0.047 342.2) |
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 #170310 | 19.86:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #170310 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #170310 text on white | 19.86:1 | AAA | Lc 105.7 | Preferred for body text |
| #170310 text on black | 1.05:1 | 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
#F9F4F7
oklch(97.2% 0.007 340.4)
-
Step 100
100
#F2E6ED
oklch(93.6% 0.016 341.4)
-
Step 200
200
#E8D2DF
oklch(88.6% 0.03 341.4)
-
Step 300
300
#DBB3CB
oklch(80.9% 0.056 341.7)
-
Step 400
400
#C78BB0
oklch(70.7% 0.087 342)
-
Step 500
500
#B86D9C
oklch(63.2% 0.112 342.6)
-
Step 600
600
#A35387
oklch(55.6% 0.124 342.3)
-
Step 700
700
#8B4372
oklch(49% 0.114 342.4)
-
Step 800
800
#71385D
oklch(42.7% 0.094 342.3)
-
Step 900
900
#5C314C
oklch(37.8% 0.073 342.8)
-
Step 950
950 (this color)
#170310
oklch(14.8% 0.047 342.2)
#170310 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) | #040710 | 0.051 |
| Deuteranopia (no green cones) | #090B0F | 0.046 |
| Tritanopia (no blue cones) | #190307 | 0.021 |
| Achromatopsia (no color) | #090909 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170310
#170310
oklch(14.8% 0.047 342.2)
- #000F07
#000F07
oklch(14.9% 0.032 162.4)
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 #170310, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.045
- Almost Black #070D0D ΔE 0.055
- Rich Navy #001219 ΔE 0.071
- Very Dark Purple #2A0134 ΔE 0.086
- Midnight #03012D ΔE 0.086
- Midnight Purple #280137 ΔE 0.088
- Rich Black #0D1B2A ΔE 0.092
- Dark Navy Blue #00022E ΔE 0.092
Use #170310 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.