#1F0903
Closest named color: Very Dark Brown (#1D0200). oklch(17.4% 0.041 40.7), rgb(31, 9, 3).
Aa
White text reads best on this color (19.11:1).
About this color
#1F0903 is a very dark, muted brown. In OKLCH its lightness is 17%, its chroma 0.041 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.027 away. White text reads best on it, at 19.11:1.
| Hue family | Browns |
| Lightness | very dark (17%) |
| Chroma | muted (0.041) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.09:1 |
| White text | 19.11:1 |
Values
| HEX | #1F0903 |
| RGB | rgb(31, 9, 3) |
| HSL | hsl(13, 82%, 7%) |
| OKLCH | oklch(17.4% 0.041 40.7) |
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 #1F0903 | 19.11:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #1F0903 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #1F0903 text on white | 19.11:1 | AAA | Lc 105.3 | Preferred for body text |
| #1F0903 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EAD4CC
oklch(88.6% 0.027 41.1)
-
Step 300
300
#DEB7A9
oklch(81% 0.049 40.7)
-
Step 400
400
#CB907B
oklch(70.6% 0.078 40.4)
-
Step 500
500
#BD7459
oklch(63.1% 0.101 41)
-
Step 600
600
#A85B3F
oklch(55.6% 0.109 40.4)
-
Step 700
700
#904B31
oklch(49.2% 0.101 40.9)
-
Step 800
800
#753E29
oklch(42.8% 0.084 41.3)
-
Step 900
900
#5F3526
oklch(37.8% 0.065 40.3)
-
Step 950
950 (this color)
#1F0903
oklch(17.4% 0.041 40.7)
#1F0903 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) | #0F0C03 | 0.039 |
| Deuteranopia (no green cones) | #141103 | 0.036 |
| Tritanopia (no blue cones) | #230507 | 0.020 |
| Achromatopsia (no color) | #0F0F0F | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F0903
#1F0903
oklch(17.4% 0.041 40.7)
- #00131A
#00131A
oklch(17.3% 0.032 221.9)
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 #1F0903, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.027
- Almost Black #070D0D ΔE 0.055
- Rich Navy #001219 ΔE 0.073
- Dark Maroon #3C0008 ΔE 0.074
- Dark Brown #341C02 ΔE 0.082
- Deep Brown #410200 ΔE 0.084
- Rich Black #0D1B2A ΔE 0.086
- Chocolate Brown #411900 ΔE 0.100
Use #1F0903 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.