#180401
Closest named color: Very Dark Brown (#1D0200). oklch(14.6% 0.041 38), rgb(24, 4, 1).
Aa
White text reads best on this color (19.87:1).
About this color
#180401 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.041 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.014 away. White text reads best on it, at 19.87:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.05:1 |
| White text | 19.87:1 |
Values
| HEX | #180401 |
| RGB | rgb(24, 4, 1) |
| HSL | hsl(8, 92%, 5%) |
| OKLCH | oklch(14.6% 0.041 38) |
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 #180401 | 19.87:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #180401 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #180401 text on white | 19.87:1 | AAA | Lc 105.7 | Preferred for body text |
| #180401 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
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EAD3CC
oklch(88.4% 0.027 37.6)
-
Step 300
300
#DEB6AA
oklch(80.8% 0.05 37.3)
-
Step 400
400
#CC907D
oklch(70.7% 0.078 38.3)
-
Step 500
500
#BD735C
oklch(63% 0.1 38)
-
Step 600
600
#A85B42
oklch(55.6% 0.108 38.7)
-
Step 700
700
#904A34
oklch(49.1% 0.101 38.2)
-
Step 800
800
#753D2C
oklch(42.7% 0.083 37.7)
-
Step 900
900
#5F3527
oklch(37.8% 0.065 39.1)
-
Step 950
950 (this color)
#180401
oklch(14.6% 0.041 38)
#180401 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) | #090701 | 0.040 |
| Deuteranopia (no green cones) | #0E0B01 | 0.037 |
| Tritanopia (no blue cones) | #1C0203 | 0.016 |
| Achromatopsia (no color) | #090909 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180401
#180401
oklch(14.6% 0.041 38)
- #000D12
#000D12
oklch(14.7% 0.027 218.9)
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 #180401, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.014
- Almost Black #070D0D ΔE 0.051
- Rich Navy #001219 ΔE 0.076
- Dark Maroon #3C0008 ΔE 0.095
- Rich Black #0D1B2A ΔE 0.103
- Deep Brown #410200 ΔE 0.107
- Dark Brown #341C02 ΔE 0.111
- Midnight #03012D ΔE 0.118
Use #180401 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.