#180510
Closest named color: Very Dark Brown (#1D0200). oklch(15.6% 0.041 345.8), rgb(24, 5, 16).
Aa
White text reads best on this color (19.66:1).
About this color
#180510 is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.041 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.041 away. White text reads best on it, at 19.66:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.66:1 |
Values
| HEX | #180510 |
| RGB | rgb(24, 5, 16) |
| HSL | hsl(325, 66%, 6%) |
| OKLCH | oklch(15.6% 0.041 345.8) |
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 #180510 | 19.66:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #180510 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #180510 text on white | 19.66:1 | AAA | Lc 105.6 | Preferred for body text |
| #180510 text on black | 1.06:1 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E6EC
oklch(93.5% 0.014 343.2)
-
Step 200
200
#E7D2DD
oklch(88.4% 0.027 344.7)
-
Step 300
300
#D9B5C7
oklch(81% 0.048 346.6)
-
Step 400
400
#C48DAB
oklch(70.6% 0.077 345.4)
-
Step 500
500
#B47096
oklch(63% 0.099 345.7)
-
Step 600
600
#9F5881
oklch(55.6% 0.107 345.5)
-
Step 700
700
#88486D
oklch(49.2% 0.099 345.7)
-
Step 800
800
#6F3B59
oklch(42.7% 0.083 345.6)
-
Step 900
900
#5A3349
oklch(37.7% 0.064 345.7)
-
Step 950
950 (this color)
#180510
oklch(15.6% 0.041 345.8)
#180510 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) | #060910 | 0.045 |
| Deuteranopia (no green cones) | #0B0C10 | 0.039 |
| Tritanopia (no blue cones) | #1A0509 | 0.016 |
| Achromatopsia (no color) | #0B0B0B | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180510
#180510
oklch(15.6% 0.041 345.8)
- #001109
#001109
oklch(15.7% 0.033 164.7)
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 #180510, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.041
- Almost Black #070D0D ΔE 0.050
- Rich Navy #001219 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.084
- Very Dark Purple #2A0134 ΔE 0.085
- Midnight Purple #280137 ΔE 0.088
- Midnight #03012D ΔE 0.088
- Dark Maroon #3C0008 ΔE 0.093
Use #180510 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.