#180C26
Closest named color: Rich Black (#0D1B2A). oklch(18.7% 0.052 303), rgb(24, 12, 38).
Aa
White text reads best on this color (18.75:1).
About this color
#180C26 is a very dark, muted purple. In OKLCH its lightness is 19%, its chroma 0.052 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.051 away. White text reads best on it, at 18.75:1.
| Hue family | Purples |
| Lightness | very dark (19%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.11:1 |
| White text | 18.75:1 |
Values
| HEX | #180C26 |
| RGB | rgb(24, 12, 38) |
| HSL | hsl(268, 52%, 10%) |
| OKLCH | oklch(18.7% 0.052 303) |
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 #180C26 | 18.75:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #180C26 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #180C26 text on white | 18.75:1 | AAA | Lc 105.2 | Preferred for body text |
| #180C26 text on black | 1.11:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DDD4EC
oklch(88.4% 0.034 302.7)
-
Step 300
300
#C8B7E2
oklch(80.8% 0.062 303)
-
Step 400
400
#AD91D4
oklch(70.6% 0.1 303.1)
-
Step 500
500
#9975C8
oklch(63.1% 0.126 302.9)
-
Step 600
600
#845CB5
oklch(55.6% 0.138 302.9)
-
Step 700
700
#704B9C
oklch(49.1% 0.129 303)
-
Step 800
800
#5B3E7E
oklch(42.7% 0.106 303.1)
-
Step 900
900
#4B3565
oklch(37.6% 0.083 303.8)
-
Step 950
950 (this color)
#180C26
oklch(18.7% 0.052 303)
#180C26 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) | #041227 | 0.040 |
| Deuteranopia (no green cones) | #071225 | 0.036 |
| Tritanopia (no blue cones) | #151117 | 0.039 |
| Achromatopsia (no color) | #121212 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180C26
#180C26
oklch(18.7% 0.052 303)
- #0F1600
#0F1600
oklch(18.6% 0.046 123.4)
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 #180C26, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.051
- Midnight Purple #280137 ΔE 0.055
- Very Dark Purple #2A0134 ΔE 0.055
- Rich Navy #001219 ΔE 0.059
- Almost Black #070D0D ΔE 0.066
- Midnight #03012D ΔE 0.069
- Dark Navy #000435 ΔE 0.069
- Dark Navy Blue #00022E ΔE 0.074
Use #180C26 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.