#171228
Closest named color: Rich Black (#0D1B2A). oklch(20.1% 0.043 292.5), rgb(23, 18, 40).
Aa
White text reads best on this color (18.20:1).
About this color
#171228 is a very dark, muted purple. In OKLCH its lightness is 20%, its chroma 0.043 and its hue 293°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 18.20:1.
| Hue family | Purples |
| Lightness | very dark (20%) |
| Chroma | muted (0.043) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.15:1 |
| White text | 18.20:1 |
Values
| HEX | #171228 |
| RGB | rgb(23, 18, 40) |
| HSL | hsl(254, 38%, 11%) |
| OKLCH | oklch(20.1% 0.043 292.5) |
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 #171228 | 18.20:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #171228 | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #171228 text on white | 18.20:1 | AAA | Lc 104.8 | Preferred for body text |
| #171228 text on black | 1.15:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#EAE8F3
oklch(93.6% 0.015 294.5)
-
Step 200
200
#D9D6EB
oklch(88.5% 0.029 292.4)
-
Step 300
300
#C1BBE0
oklch(80.9% 0.052 292.6)
-
Step 400
400
#A297D0
oklch(70.7% 0.083 293)
-
Step 500
500
#8B7DC3
oklch(63% 0.104 292.3)
-
Step 600
600
#7665B0
oklch(55.6% 0.115 292.7)
-
Step 700
700
#635497
oklch(49.1% 0.105 292.4)
-
Step 800
800
#51457B
oklch(42.8% 0.088 292.5)
-
Step 900
900
#433A63
oklch(37.7% 0.069 292.9)
-
Step 950
950 (this color)
#171228
oklch(20.1% 0.043 292.5)
#171228 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) | #0B1629 | 0.023 |
| Deuteranopia (no green cones) | #0C1527 | 0.022 |
| Tritanopia (no blue cones) | #13161B | 0.034 |
| Achromatopsia (no color) | #151515 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171228
#171228
oklch(20.1% 0.043 292.5)
- #171801
#171801
oklch(20.1% 0.042 111.8)
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 #171228, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Rich Navy #001219 ΔE 0.054
- Dark #1B2431 ΔE 0.063
- Midnight Purple #280137 ΔE 0.063
- Very Dark Purple #2A0134 ΔE 0.064
- Almost Black #070D0D ΔE 0.067
- Navy Blue #001146 ΔE 0.069
- Jet #212529 ΔE 0.072
Use #171228 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.