#18132F
Closest named color: Rich Black (#0D1B2A). oklch(21% 0.054 289.1), rgb(24, 19, 47).
Aa
White text reads best on this color (17.90:1).
About this color
#18132F is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.054 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.035 away. White text reads best on it, at 17.90:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.90:1 |
Values
| HEX | #18132F |
| RGB | rgb(24, 19, 47) |
| HSL | hsl(251, 42%, 13%) |
| OKLCH | oklch(21% 0.054 289.1) |
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 #18132F | 17.90:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #18132F | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #18132F text on white | 17.90:1 | AAA | Lc 104.6 | Preferred for body text |
| #18132F 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D8D6F0
oklch(88.6% 0.036 289.2)
-
Step 300
300
#BFBAE8
oklch(80.8% 0.065 289.9)
-
Step 400
400
#9F96DC
oklch(70.7% 0.101 289.4)
-
Step 500
500
#887AD3
oklch(63% 0.131 289.3)
-
Step 600
600
#7362C0
oklch(55.7% 0.142 289.3)
-
Step 700
700
#6050A6
oklch(49% 0.133 289.1)
-
Step 800
800
#4E4286
oklch(42.6% 0.109 289)
-
Step 900
900
#41396B
oklch(37.8% 0.084 289.1)
-
Step 950
950 (this color)
#18132F
oklch(21% 0.054 289.1)
#18132F 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) | #081830 | 0.028 |
| Deuteranopia (no green cones) | #08162E | 0.027 |
| Tritanopia (no blue cones) | #12191E | 0.046 |
| Achromatopsia (no color) | #171717 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18132F
#18132F
oklch(21% 0.054 289.1)
- #1A1A00
#1A1A00
oklch(21.1% 0.046 109.8)
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 #18132F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.035
- Midnight Purple #280137 ΔE 0.057
- Very Dark Purple #2A0134 ΔE 0.058
- Dark #1B2431 ΔE 0.059
- Navy Blue #001146 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.064
- Rich Navy #001219 ΔE 0.065
- Jet #212529 ΔE 0.070
Use #18132F 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.