#191529
Closest named color: Rich Black (#0D1B2A). oklch(21.1% 0.039 291.9), rgb(25, 21, 41).
Aa
White text reads best on this color (17.78:1).
About this color
#191529 is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.039 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.027 away. White text reads best on it, at 17.78:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.039) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.78:1 |
Values
| HEX | #191529 |
| RGB | rgb(25, 21, 41) |
| HSL | hsl(252, 32%, 12%) |
| OKLCH | oklch(21.1% 0.039 291.9) |
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 #191529 | 17.78:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #191529 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #191529 text on white | 17.78:1 | AAA | Lc 104.5 | Preferred for body text |
| #191529 text on black | 1.18:1 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#EAE8F2
oklch(93.5% 0.014 295.3)
-
Step 200
200
#D9D6E9
oklch(88.4% 0.026 293.1)
-
Step 300
300
#C1BCDD
oklch(81% 0.046 292.3)
-
Step 400
400
#A199CB
oklch(70.8% 0.073 291.8)
-
Step 500
500
#8A7FBE
oklch(63.1% 0.094 291.5)
-
Step 600
600
#7567AA
oklch(55.5% 0.103 292.3)
-
Step 700
700
#625692
oklch(49.1% 0.095 291.7)
-
Step 800
800
#504677
oklch(42.7% 0.08 292)
-
Step 900
900
#423B60
oklch(37.6% 0.063 291.8)
-
Step 950
950 (this color)
#191529
oklch(21.1% 0.039 291.9)
#191529 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) | #0F182A | 0.019 |
| Deuteranopia (no green cones) | #0F1728 | 0.019 |
| Tritanopia (no blue cones) | #15191D | 0.033 |
| Achromatopsia (no color) | #181818 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191529
#191529
oklch(21.1% 0.039 291.9)
- #191A04
#191A04
oklch(21% 0.039 111.6)
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 #191529, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.027
- Dark #1B2431 ΔE 0.052
- Rich Navy #001219 ΔE 0.059
- Jet #212529 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.061
- Very Dark Purple #2A0134 ΔE 0.066
- Midnight Purple #280137 ΔE 0.066
- Navy Blue #001146 ΔE 0.071
Use #191529 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.