#1B2309
Closest named color: Dark Forest Green (#002D04). oklch(24.1% 0.045 124), rgb(27, 35, 9).
Aa
White text reads best on this color (16.26:1).
About this color
#1B2309 is a very dark, muted brown. In OKLCH its lightness is 24%, its chroma 0.045 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.047 away. White text reads best on it, at 16.26:1.
| Hue family | Browns |
| Lightness | very dark (24%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.29:1 |
| White text | 16.26:1 |
Values
| HEX | #1B2309 |
| RGB | rgb(27, 35, 9) |
| HSL | hsl(78, 59%, 9%) |
| OKLCH | oklch(24.1% 0.045 124) |
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 #1B2309 | 16.26:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #1B2309 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #1B2309 text on white | 16.26:1 | AAA | Lc 103.2 | Preferred for body text |
| #1B2309 text on black | 1.29:1 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D5DDC8
oklch(88.6% 0.03 124)
-
Step 300
300
#B9C7A1
oklch(80.9% 0.054 124)
-
Step 400
400
#95AA6E
oklch(70.7% 0.086 124.2)
-
Step 500
500
#7C9446
oklch(63% 0.108 123.6)
-
Step 600
600
#657E25
oklch(55.5% 0.118 123.8)
-
Step 700
700
#546B17
oklch(49.2% 0.111 124.1)
-
Step 800
800
#455716
oklch(42.7% 0.091 123.7)
-
Step 900
900
#3A481A
oklch(37.8% 0.071 123.9)
-
Step 950
950 (this color)
#1B2309
oklch(24.1% 0.045 124)
#1B2309 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) | #252007 | 0.020 |
| Deuteranopia (no green cones) | #24200B | 0.020 |
| Tritanopia (no blue cones) | #1D211D | 0.036 |
| Achromatopsia (no color) | #202020 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B2309
#1B2309
oklch(24.1% 0.045 124)
- #241A31
#241A31
oklch(24.2% 0.045 303.2)
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 #1B2309, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.047
- Very Dark Green #062E03 ΔE 0.047
- Dark Brown #341C02 ΔE 0.051
- Jet #212529 ΔE 0.055
- Dark #1B2431 ΔE 0.069
- Pakistan Green #283618 ΔE 0.071
- Rich Black #0D1B2A ΔE 0.076
- Chocolate Brown #411900 ΔE 0.080
Use #1B2309 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.