#180604
Closest named color: Very Dark Brown (#1D0200). oklch(15.3% 0.034 30.9), rgb(24, 6, 4).
Aa
White text reads best on this color (19.68:1).
About this color
#180604 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.034 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.020 away. White text reads best on it, at 19.68:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.034) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.68:1 |
Values
| HEX | #180604 |
| RGB | rgb(24, 6, 4) |
| HSL | hsl(6, 71%, 5%) |
| OKLCH | oklch(15.3% 0.034 30.9) |
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 #180604 | 19.68:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #180604 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #180604 text on white | 19.68:1 | AAA | Lc 105.7 | Preferred for body text |
| #180604 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E5
oklch(93.6% 0.012 29.9)
-
Step 200
200
#E8D4D0
oklch(88.5% 0.023 31.1)
-
Step 300
300
#DAB8B1
oklch(81% 0.041 31.6)
-
Step 400
400
#C69288
oklch(70.7% 0.065 31)
-
Step 500
500
#B6766B
oklch(63% 0.083 30.2)
-
Step 600
600
#A25E52
oklch(55.6% 0.092 30.9)
-
Step 700
700
#8A4D43
oklch(49% 0.085 30.3)
-
Step 800
800
#704037
oklch(42.7% 0.069 31.5)
-
Step 900
900
#5B3630
oklch(37.6% 0.055 29.8)
-
Step 950
950 (this color)
#180604
oklch(15.3% 0.034 30.9)
#180604 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) | #0A0904 | 0.035 |
| Deuteranopia (no green cones) | #0F0C04 | 0.031 |
| Tritanopia (no blue cones) | #1B0406 | 0.013 |
| Achromatopsia (no color) | #0B0B0B | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180604
#180604
oklch(15.3% 0.034 30.9)
- #000F12
#000F12
oklch(15.4% 0.027 208.8)
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 #180604, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.020
- Almost Black #070D0D ΔE 0.044
- Rich Navy #001219 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.092
- Rich Black #0D1B2A ΔE 0.092
- Deep Brown #410200 ΔE 0.104
- Dark Brown #341C02 ΔE 0.105
- Very Dark Purple #2A0134 ΔE 0.110
Use #180604 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.