#1B3501
Closest named color: Pakistan Green (#283618). oklch(29.6% 0.083 133.2), rgb(27, 53, 1).
Aa
White text reads best on this color (13.49:1).
About this color
#1B3501 is a dark, moderately saturated green. In OKLCH its lightness is 30%, its chroma 0.083 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pakistan Green (#283618), ΔE 0.034 away. White text reads best on it, at 13.49:1.
| Hue family | Greens |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.083) |
| Temperature | in between |
| Nearest name | Pakistan Green (#283618) |
| Black text | 1.55:1 |
| White text | 13.49:1 |
Values
| HEX | #1B3501 |
| RGB | rgb(27, 53, 1) |
| HSL | hsl(90, 96%, 11%) |
| OKLCH | oklch(29.6% 0.083 133.2) |
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 #1B3501 | 13.49:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #1B3501 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #1B3501 text on white | 13.49:1 | AAA | Lc 99.8 | Preferred for body text |
| #1B3501 text on black | 1.55:1 | 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
#CBE1BD
oklch(88.4% 0.054 133.2)
-
Step 300
300
#A8CF8D
oklch(81% 0.098 133.1)
-
Step 400
400
#78B546
oklch(70.8% 0.157 133.3)
-
Step 500
500
#5B9F00
oklch(63.2% 0.179 133.1)
-
Step 600
600
#4B8500
oklch(55.5% 0.157 133.2)
-
Step 700
700
#3E7000
oklch(49% 0.139 133.3)
-
Step 800
800
#325C00
oklch(42.7% 0.121 133.3)
-
Step 900
900
#294D00
oklch(37.8% 0.107 133.2)
-
Step 950
950 (this color)
#1B3501
oklch(29.6% 0.083 133.2)
#1B3501 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) | #383000 | 0.048 |
| Deuteranopia (no green cones) | #342E06 | 0.047 |
| Tritanopia (no blue cones) | #1B322C | 0.063 |
| Achromatopsia (no color) | #2E2E2E | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B3501
#1B3501
oklch(29.6% 0.083 133.2)
- #3B1E4A
#3B1E4A
oklch(29.6% 0.083 312.8)
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 #1B3501, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pakistan Green #283618 ΔE 0.034
- Very Dark Green #062E03 ΔE 0.035
- Hunter Green #0B4008 ΔE 0.037
- Dark Forest Green #002D04 ΔE 0.042
- Forrest Green #154406 ΔE 0.050
- Dark Olive #373E02 ΔE 0.054
- Racing Green #014600 ΔE 0.058
- British Racing Green #05480D ΔE 0.062
Use #1B3501 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.