#1F0900
Closest named color: Very Dark Brown (#1D0200). oklch(17.3% 0.045 51.1), rgb(31, 9, 0).
Aa
White text reads best on this color (19.13:1).
About this color
#1F0900 is a very dark, muted brown. In OKLCH its lightness is 17%, its chroma 0.045 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.028 away. White text reads best on it, at 19.13:1.
| Hue family | Browns |
| Lightness | very dark (17%) |
| Chroma | muted (0.045) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.09:1 |
| White text | 19.13:1 |
Values
| HEX | #1F0900 |
| RGB | rgb(31, 9, 0) |
| HSL | hsl(17, 100%, 6%) |
| OKLCH | oklch(17.3% 0.045 51.1) |
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 #1F0900 | 19.13:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #1F0900 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #1F0900 text on white | 19.13:1 | AAA | Lc 105.3 | Preferred for body text |
| #1F0900 text on black | 1.09:1 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E1
oklch(93.6% 0.015 48.6)
-
Step 200
200
#EAD4C8
oklch(88.5% 0.03 50.6)
-
Step 300
300
#DEB7A2
oklch(80.8% 0.054 49.9)
-
Step 400
400
#CC916F
oklch(70.6% 0.086 50.8)
-
Step 500
500
#BE7548
oklch(63.2% 0.11 51.3)
-
Step 600
600
#A95C29
oklch(55.6% 0.119 51.1)
-
Step 700
700
#914B1C
oklch(49.1% 0.111 50.7)
-
Step 800
800
#763E1A
oklch(42.7% 0.092 50.5)
-
Step 900
900
#5F351B
oklch(37.6% 0.072 50.8)
-
Step 950
950 (this color)
#1F0900
oklch(17.3% 0.045 51.1)
#1F0900 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) | #0F0C00 | 0.040 |
| Deuteranopia (no green cones) | #151100 | 0.034 |
| Tritanopia (no blue cones) | #230506 | 0.026 |
| Achromatopsia (no color) | #0F0F0F | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F0900
#1F0900
oklch(17.3% 0.045 51.1)
- #00131D
#00131D
oklch(17.5% 0.035 230.8)
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 #1F0900, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.028
- Almost Black #070D0D ΔE 0.058
- Rich Navy #001219 ΔE 0.076
- Dark Maroon #3C0008 ΔE 0.077
- Dark Brown #341C02 ΔE 0.081
- Deep Brown #410200 ΔE 0.085
- Rich Black #0D1B2A ΔE 0.091
- Chocolate Brown #411900 ΔE 0.100
Use #1F0900 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.