#1B3401
Closest named color: Very Dark Green (#062E03). oklch(29.3% 0.081 132.8), rgb(27, 52, 1).
Aa
White text reads best on this color (13.65:1).
About this color
#1B3401 is a dark, moderately saturated green. In OKLCH its lightness is 29%, its chroma 0.081 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Very Dark Green (#062E03), ΔE 0.032 away. White text reads best on it, at 13.65:1.
| Hue family | Greens |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Very Dark Green (#062E03) |
| Black text | 1.53:1 |
| White text | 13.65:1 |
Values
| HEX | #1B3401 |
| RGB | rgb(27, 52, 1) |
| HSL | hsl(89, 96%, 10%) |
| OKLCH | oklch(29.3% 0.081 132.8) |
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 #1B3401 | 13.65:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #1B3401 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #1B3401 text on white | 13.65:1 | AAA | Lc 100.0 | Preferred for body text |
| #1B3401 text on black | 1.53:1 | 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
#F2F7EF
oklch(97% 0.012 133.4)
-
Step 100
100
#E3EEDB
oklch(93.6% 0.028 131.8)
-
Step 200
200
#CCE1BD
oklch(88.5% 0.053 132.2)
-
Step 300
300
#A9CE8E
oklch(80.9% 0.095 132.6)
-
Step 400
400
#7AB447
oklch(70.7% 0.154 132.7)
-
Step 500
500
#5C9E00
oklch(63% 0.177 132.8)
-
Step 600
600
#4D8500
oklch(55.6% 0.156 132.7)
-
Step 700
700
#3F7000
oklch(49.1% 0.138 133)
-
Step 800
800
#335C00
oklch(42.8% 0.12 132.9)
-
Step 900
900
#2A4D00
oklch(37.9% 0.107 132.8)
-
Step 950
950 (this color)
#1B3401
oklch(29.3% 0.081 132.8)
#1B3401 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) | #372F00 | 0.047 |
| Deuteranopia (no green cones) | #332D05 | 0.045 |
| Tritanopia (no blue cones) | #1B312B | 0.062 |
| Achromatopsia (no color) | #2E2E2E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B3401
#1B3401
oklch(29.3% 0.081 132.8)
- #3A1E48
#3A1E48
oklch(29.4% 0.08 313.3)
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 #1B3401, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Green #062E03 ΔE 0.032
- Pakistan Green #283618 ΔE 0.034
- Dark Forest Green #002D04 ΔE 0.039
- Hunter Green #0B4008 ΔE 0.040
- Forrest Green #154406 ΔE 0.054
- Dark Olive #373E02 ΔE 0.057
- Racing Green #014600 ΔE 0.062
- Pine Green #0A481E ΔE 0.066
Use #1B3401 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.