#181429
Closest named color: Rich Black (#0D1B2A). oklch(20.8% 0.041 291.1), rgb(24, 20, 41).
Aa
White text reads best on this color (17.93:1).
About this color
#181429 is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.041 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.028 away. White text reads best on it, at 17.93:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.041) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.93:1 |
Values
| HEX | #181429 |
| RGB | rgb(24, 20, 41) |
| HSL | hsl(251, 34%, 12%) |
| OKLCH | oklch(20.8% 0.041 291.1) |
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 #181429 | 17.93:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #181429 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #181429 text on white | 17.93:1 | AAA | Lc 104.6 | Preferred for body text |
| #181429 text on black | 1.17:1 | 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
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D9D6EA
oklch(88.4% 0.027 292.7)
-
Step 300
300
#C0BCDE
oklch(80.9% 0.048 290.7)
-
Step 400
400
#A098CE
oklch(70.6% 0.078 291)
-
Step 500
500
#8A7EC1
oklch(63.1% 0.1 291.5)
-
Step 600
600
#7467AD
oklch(55.6% 0.107 291)
-
Step 700
700
#625595
oklch(49.1% 0.101 291.6)
-
Step 800
800
#504679
oklch(42.8% 0.083 291.5)
-
Step 900
900
#423B61
oklch(37.7% 0.064 291.5)
-
Step 950
950 (this color)
#181429
oklch(20.8% 0.041 291.1)
#181429 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) | #0E172A | 0.019 |
| Deuteranopia (no green cones) | #0E1728 | 0.020 |
| Tritanopia (no blue cones) | #14181C | 0.034 |
| Achromatopsia (no color) | #171717 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #181429
#181429
oklch(20.8% 0.041 291.1)
- #191902
#191902
oklch(20.7% 0.041 109.5)
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 #181429, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.028
- Dark #1B2431 ΔE 0.055
- Rich Navy #001219 ΔE 0.057
- Jet #212529 ΔE 0.064
- Oxford Blue #1B263B ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
- Very Dark Purple #2A0134 ΔE 0.065
- Navy Blue #001146 ΔE 0.069
Use #181429 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.