#1F090F
Closest named color: Very Dark Brown (#1D0200). oklch(17.8% 0.039 4.6), rgb(31, 9, 15).
Aa
White text reads best on this color (19.01:1).
About this color
#1F090F is a very dark, muted red. In OKLCH its lightness is 18%, its chroma 0.039 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.039 away. White text reads best on it, at 19.01:1.
| Hue family | Reds |
| Lightness | very dark (18%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.10:1 |
| White text | 19.01:1 |
Values
| HEX | #1F090F |
| RGB | rgb(31, 9, 15) |
| HSL | hsl(344, 55%, 8%) |
| OKLCH | oklch(17.8% 0.039 4.6) |
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 #1F090F | 19.01:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #1F090F | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #1F090F text on white | 19.01:1 | AAA | Lc 105.3 | Preferred for body text |
| #1F090F text on black | 1.10:1 | 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
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F2E6E9
oklch(93.5% 0.014 0.3)
-
Step 200
200
#E9D2D7
oklch(88.4% 0.026 2.8)
-
Step 300
300
#DCB5BD
oklch(81% 0.046 4.4)
-
Step 400
400
#C98D9B
oklch(70.6% 0.075 3.8)
-
Step 500
500
#BA7182
oklch(63.2% 0.094 5)
-
Step 600
600
#A5586C
oklch(55.7% 0.103 4.4)
-
Step 700
700
#8D485A
oklch(49.2% 0.095 4.6)
-
Step 800
800
#733B49
oklch(42.7% 0.08 5.1)
-
Step 900
900
#5D333D
oklch(37.7% 0.062 5.1)
-
Step 950
950 (this color)
#1F090F
oklch(17.8% 0.039 4.6)
#1F090F 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) | #0D0D0F | 0.043 |
| Deuteranopia (no green cones) | #13120F | 0.039 |
| Tritanopia (no blue cones) | #22070B | 0.010 |
| Achromatopsia (no color) | #101010 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F090F
#1F090F
oklch(17.8% 0.039 4.6)
- #001613
#001613
oklch(18% 0.032 183.7)
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 #1F090F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.039
- Almost Black #070D0D ΔE 0.055
- Rich Navy #001219 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.071
- Rich Black #0D1B2A ΔE 0.074
- Very Dark Purple #2A0134 ΔE 0.083
- Deep Brown #410200 ΔE 0.086
- Midnight Purple #280137 ΔE 0.087
Use #1F090F 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.