#1C1929
Closest named color: Rich Black (#0D1B2A). oklch(22.5% 0.031 292.3), rgb(28, 25, 41).
Aa
White text reads best on this color (17.20:1).
About this color
#1C1929 is a very dark, muted purple. In OKLCH its lightness is 22%, its chroma 0.031 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 0.025 away. White text reads best on it, at 17.20:1.
| Hue family | Purples |
| Lightness | very dark (22%) |
| Chroma | muted (0.031) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.20:1 |
Values
| HEX | #1C1929 |
| RGB | rgb(28, 25, 41) |
| HSL | hsl(251, 24%, 13%) |
| OKLCH | oklch(22.5% 0.031 292.3) |
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 #1C1929 | 17.20:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #1C1929 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #1C1929 text on white | 17.20:1 | AAA | Lc 104.1 | Preferred for body text |
| #1C1929 text on black | 1.22:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9F1
oklch(93.7% 0.011 291.9)
-
Step 200
200
#D9D7E6
oklch(88.5% 0.021 292.1)
-
Step 300
300
#C1BDD7
oklch(81% 0.036 292.6)
-
Step 400
400
#A19AC3
oklch(70.6% 0.06 292.6)
-
Step 500
500
#8A81B3
oklch(63% 0.075 292.4)
-
Step 600
600
#746A9F
oklch(55.5% 0.082 292.2)
-
Step 700
700
#625888
oklch(49% 0.076 292.9)
-
Step 800
800
#50486F
oklch(42.6% 0.064 292.9)
-
Step 900
900
#423D5A
oklch(37.8% 0.049 291.8)
-
Step 950
950 (this color)
#1C1929
oklch(22.5% 0.031 292.3)
#1C1929 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) | #151B2A | 0.013 |
| Deuteranopia (no green cones) | #151B29 | 0.014 |
| Tritanopia (no blue cones) | #191C1F | 0.026 |
| Achromatopsia (no color) | #1B1B1B | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C1929
#1C1929
oklch(22.5% 0.031 292.3)
- #1C1D0C
#1C1D0C
oklch(22.4% 0.03 111.5)
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 #1C1929, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.025
- Dark #1B2431 ΔE 0.038
- Jet #212529 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.049
- Rich Navy #001219 ΔE 0.066
- Very Dark Purple #2A0134 ΔE 0.074
- Midnight Purple #280137 ΔE 0.075
- Eggplant #380835 ΔE 0.076
Use #1C1929 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.