#1D0307
Closest named color: Very Dark Brown (#1D0200). oklch(15.7% 0.049 12.4), rgb(29, 3, 7).
Aa
White text reads best on this color (19.65:1).
About this color
#1D0307 is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.049 and its hue 12°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.021 away. White text reads best on it, at 19.65:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.049) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.65:1 |
Values
| HEX | #1D0307 |
| RGB | rgb(29, 3, 7) |
| HSL | hsl(351, 81%, 6%) |
| OKLCH | oklch(15.7% 0.049 12.4) |
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 #1D0307 | 19.65:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1D0307 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #1D0307 text on white | 19.65:1 | AAA | Lc 105.5 | Preferred for body text |
| #1D0307 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F5E6E7
oklch(93.7% 0.016 12.8)
-
Step 200
200
#EED1D3
oklch(88.5% 0.033 13)
-
Step 300
300
#E4B2B6
oklch(81% 0.058 13.1)
-
Step 400
400
#D48891
oklch(70.7% 0.094 12)
-
Step 500
500
#C66976
oklch(63.1% 0.118 12.2)
-
Step 600
600
#B24E5E
oklch(55.6% 0.131 12.5)
-
Step 700
700
#983F4E
oklch(49.1% 0.12 12.3)
-
Step 800
800
#7C3440
oklch(42.7% 0.101 12.1)
-
Step 900
900
#642E36
oklch(37.6% 0.078 12.3)
-
Step 950
950 (this color)
#1D0307
oklch(15.7% 0.049 12.4)
#1D0307 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) | #080807 | 0.055 |
| Deuteranopia (no green cones) | #0F0D06 | 0.050 |
| Tritanopia (no blue cones) | #210104 | 0.013 |
| Achromatopsia (no color) | #0B0B0B | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D0307
#1D0307
oklch(15.7% 0.049 12.4)
- #001010
#001010
oklch(15.7% 0.027 194.8)
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 #1D0307, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.021
- Almost Black #070D0D ΔE 0.059
- Rich Navy #001219 ΔE 0.079
- Dark Maroon #3C0008 ΔE 0.080
- Deep Brown #410200 ΔE 0.095
- Rich Black #0D1B2A ΔE 0.096
- Very Dark Purple #2A0134 ΔE 0.096
- Midnight Purple #280137 ΔE 0.101
Use #1D0307 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.