#170C20
Closest named color: Rich Navy (#001219). oklch(18.1% 0.042 308.1), rgb(23, 12, 32).
Aa
White text reads best on this color (18.92:1).
About this color
#170C20 is a very dark, muted purple. In OKLCH its lightness is 18%, its chroma 0.042 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.052 away. White text reads best on it, at 18.92:1.
| Hue family | Purples |
| Lightness | very dark (18%) |
| Chroma | muted (0.042) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 18.92:1 |
Values
| HEX | #170C20 |
| RGB | rgb(23, 12, 32) |
| HSL | hsl(273, 45%, 9%) |
| OKLCH | oklch(18.1% 0.042 308.1) |
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 #170C20 | 18.92:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #170C20 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #170C20 text on white | 18.92:1 | AAA | Lc 105.3 | Preferred for body text |
| #170C20 text on black | 1.10:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE7F1
oklch(93.5% 0.014 308.3)
-
Step 200
200
#DED5E8
oklch(88.6% 0.027 307)
-
Step 300
300
#CAB8DA
oklch(80.8% 0.051 309)
-
Step 400
400
#AE93C7
oklch(70.6% 0.08 308)
-
Step 500
500
#9B78B9
oklch(63.1% 0.102 308.4)
-
Step 600
600
#8560A5
oklch(55.5% 0.111 307.8)
-
Step 700
700
#714F8E
oklch(49.1% 0.104 307.9)
-
Step 800
800
#5C4173
oklch(42.7% 0.086 308)
-
Step 900
900
#4B375D
oklch(37.6% 0.068 307.6)
-
Step 950
950 (this color)
#170C20
oklch(18.1% 0.042 308.1)
#170C20 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) | #071021 | 0.033 |
| Deuteranopia (no green cones) | #0A111F | 0.030 |
| Tritanopia (no blue cones) | #160F14 | 0.030 |
| Achromatopsia (no color) | #111111 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170C20
#170C20
oklch(18.1% 0.042 308.1)
- #0C1502
#0C1502
oklch(18.1% 0.041 128.7)
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 #170C20, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.052
- Almost Black #070D0D ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
- Midnight #03012D ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.073
- Dark Navy #000435 ΔE 0.075
Use #170C20 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.