#180301
Closest named color: Very Dark Brown (#1D0200). oklch(14.3% 0.044 34.2), rgb(24, 3, 1).
Aa
White text reads best on this color (19.95:1).
About this color
#180301 is a very dark, muted red. In OKLCH its lightness is 14%, its chroma 0.044 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.013 away. White text reads best on it, at 19.95:1.
| Hue family | Reds |
| Lightness | very dark (14%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.05:1 |
| White text | 19.95:1 |
Values
| HEX | #180301 |
| RGB | rgb(24, 3, 1) |
| HSL | hsl(5, 92%, 5%) |
| OKLCH | oklch(14.3% 0.044 34.2) |
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 #180301 | 19.95:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #180301 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #180301 text on white | 19.95:1 | AAA | Lc 105.7 | Preferred for body text |
| #180301 text on black | 1.05:1 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E7E3
oklch(93.7% 0.015 37.9)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#E0B5AB
oklch(80.9% 0.052 33.3)
-
Step 400
400
#CF8E7E
oklch(70.7% 0.083 34.4)
-
Step 500
500
#C0715E
oklch(63.1% 0.105 34.4)
-
Step 600
600
#AC5844
oklch(55.7% 0.115 34.5)
-
Step 700
700
#934736
oklch(49% 0.107 33.9)
-
Step 800
800
#783B2D
oklch(42.8% 0.089 34.1)
-
Step 900
900
#613328
oklch(37.7% 0.069 34.4)
-
Step 950
950 (this color)
#180301
oklch(14.3% 0.044 34.2)
#180301 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) | #080601 | 0.043 |
| Deuteranopia (no green cones) | #0D0A01 | 0.039 |
| Tritanopia (no blue cones) | #1C0103 | 0.017 |
| Achromatopsia (no color) | #090909 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180301
#180301
oklch(14.3% 0.044 34.2)
- #000C10
#000C10
oklch(14.2% 0.025 215.2)
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 #180301, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.013
- Almost Black #070D0D ΔE 0.054
- Rich Navy #001219 ΔE 0.079
- Dark Maroon #3C0008 ΔE 0.096
- Rich Black #0D1B2A ΔE 0.106
- Deep Brown #410200 ΔE 0.108
- Dark Brown #341C02 ΔE 0.114
- Midnight #03012D ΔE 0.118
Use #180301 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.