#1F210B
Closest named color: Dark Brown (#341C02). oklch(23.9% 0.037 113.5), rgb(31, 33, 11).
Aa
White text reads best on this color (16.39:1).
About this color
#1F210B is a very dark, muted brown. In OKLCH its lightness is 24%, its chroma 0.037 and its hue 113°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.043 away. White text reads best on it, at 16.39:1.
| Hue family | Browns |
| Lightness | very dark (24%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.28:1 |
| White text | 16.39:1 |
Values
| HEX | #1F210B |
| RGB | rgb(31, 33, 11) |
| HSL | hsl(65, 50%, 9%) |
| OKLCH | oklch(23.9% 0.037 113.5) |
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 #1F210B | 16.39:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #1F210B | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #1F210B text on white | 16.39:1 | AAA | Lc 103.3 | Preferred for body text |
| #1F210B text on black | 1.28:1 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E9EBE1
oklch(93.6% 0.013 115.8)
-
Step 200
200
#D9DBC9
oklch(88.5% 0.024 112)
-
Step 300
300
#C0C4A4
oklch(80.9% 0.044 113.2)
-
Step 400
400
#A0A673
oklch(70.8% 0.07 113.7)
-
Step 500
500
#89904D
oklch(63.2% 0.091 113.9)
-
Step 600
600
#73792F
oklch(55.5% 0.098 113.4)
-
Step 700
700
#616621
oklch(49.1% 0.091 113.2)
-
Step 800
800
#4F531E
oklch(42.6% 0.075 113.1)
-
Step 900
900
#41451E
oklch(37.7% 0.059 114.1)
-
Step 950
950 (this color)
#1F210B
oklch(23.9% 0.037 113.5)
#1F210B 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) | #241F09 | 0.011 |
| Deuteranopia (no green cones) | #24200C | 0.010 |
| Tritanopia (no blue cones) | #211F1C | 0.032 |
| Achromatopsia (no color) | #1F1F1F | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F210B
#1F210B
oklch(23.9% 0.037 113.5)
- #201C2F
#201C2F
oklch(24% 0.036 293.2)
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 #1F210B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.043
- Jet #212529 ΔE 0.050
- Dark Forest Green #002D04 ΔE 0.058
- Very Dark Green #062E03 ΔE 0.058
- Dark #1B2431 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.071
- Chocolate Brown #411900 ΔE 0.072
- Pakistan Green #283618 ΔE 0.075
Use #1F210B 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.