#18112F
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.058 291.2), rgb(24, 17, 47).
Aa
White text reads best on this color (18.10:1).
About this color
#18112F is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.058 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 0.040 away. White text reads best on it, at 18.10:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.058) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.10:1 |
Values
| HEX | #18112F |
| RGB | rgb(24, 17, 47) |
| HSL | hsl(254, 47%, 13%) |
| OKLCH | oklch(20.5% 0.058 291.2) |
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 #18112F | 18.10:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #18112F | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #18112F text on white | 18.10:1 | AAA | Lc 104.7 | Preferred for body text |
| #18112F text on black | 1.16:1 | 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
#F5F4FB
oklch(97% 0.009 292.8)
-
Step 100
100
#E9E8F6
oklch(93.6% 0.019 289.3)
-
Step 200
200
#D9D5F1
oklch(88.5% 0.038 292.2)
-
Step 300
300
#C0B9EA
oklch(80.8% 0.069 291.3)
-
Step 400
400
#A194DF
oklch(70.7% 0.109 291.3)
-
Step 500
500
#8B78D6
oklch(63.1% 0.139 291.2)
-
Step 600
600
#765FC4
oklch(55.7% 0.152 291.2)
-
Step 700
700
#634EA9
oklch(49.1% 0.14 291)
-
Step 800
800
#514089
oklch(42.7% 0.117 291.4)
-
Step 900
900
#43376E
oklch(37.8% 0.092 291.4)
-
Step 950
950 (this color)
#18112F
oklch(20.5% 0.058 291.2)
#18112F 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) | #051630 | 0.033 |
| Deuteranopia (no green cones) | #06152E | 0.031 |
| Tritanopia (no blue cones) | #12171D | 0.047 |
| Achromatopsia (no color) | #161616 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18112F
#18112F
oklch(20.5% 0.058 291.2)
- #181900
#181900
oklch(20.5% 0.045 111.8)
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 #18112F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Midnight Purple #280137 ΔE 0.053
- Very Dark Purple #2A0134 ΔE 0.055
- Navy Blue #001146 ΔE 0.059
- Dark #1B2431 ΔE 0.065
- Rich Navy #001219 ΔE 0.066
- Dark Navy #000435 ΔE 0.069
- Oxford Blue #1B263B ΔE 0.070
Use #18112F 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.