#16172D
Closest named color: Rich Black (#0D1B2A). oklch(21.6% 0.043 280.2), rgb(22, 23, 45).
Aa
White text reads best on this color (17.57:1).
About this color
#16172D is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.043 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.021 away. White text reads best on it, at 17.57:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.57:1 |
Values
| HEX | #16172D |
| RGB | rgb(22, 23, 45) |
| HSL | hsl(237, 34%, 13%) |
| OKLCH | oklch(21.6% 0.043 280.2) |
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 #16172D | 17.57:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #16172D | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #16172D text on white | 17.57:1 | AAA | Lc 104.4 | Preferred for body text |
| #16172D text on black | 1.19:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D5D8EC
oklch(88.6% 0.028 279)
-
Step 300
300
#BABEE2
oklch(81% 0.051 280.2)
-
Step 400
400
#969BD3
oklch(70.6% 0.082 280.1)
-
Step 500
500
#7D82C7
oklch(63.1% 0.103 279.8)
-
Step 600
600
#676AB4
oklch(55.5% 0.114 280.2)
-
Step 700
700
#56589B
oklch(49% 0.106 280.4)
-
Step 800
800
#46487D
oklch(42.5% 0.087 280.4)
-
Step 900
900
#3B3D65
oklch(37.7% 0.068 280.4)
-
Step 950
950 (this color)
#16172D
oklch(21.6% 0.043 280.2)
#16172D 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) | #0F1A2E | 0.014 |
| Deuteranopia (no green cones) | #0E182C | 0.014 |
| Tritanopia (no blue cones) | #0F1B1F | 0.037 |
| Achromatopsia (no color) | #191919 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #16172D
#16172D
oklch(21.6% 0.043 280.2)
- #1E1A01
#1E1A01
oklch(21.6% 0.043 101.1)
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 #16172D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.021
- Dark #1B2431 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.055
- Jet #212529 ΔE 0.058
- Rich Navy #001219 ΔE 0.060
- Navy Blue #001146 ΔE 0.063
- Midnight Purple #280137 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.071
Use #16172D 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.