#1B4523
Closest named color: Evergreen (#05472A). oklch(35.1% 0.075 147.8), rgb(27, 69, 35).
Aa
White text reads best on this color (10.92:1).
About this color
#1B4523 is a dark, moderately saturated green. In OKLCH its lightness is 35%, its chroma 0.075 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.014 away. White text reads best on it, at 10.92:1.
| Hue family | Greens |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #1B4523 |
| RGB | rgb(27, 69, 35) |
| HSL | hsl(131, 44%, 19%) |
| OKLCH | oklch(35.1% 0.075 147.8) |
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 #1B4523 | 10.92:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #1B4523 | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #1B4523 text on white | 10.92:1 | AAA | Lc 95.1 | Preferred for body text |
| #1B4523 text on black | 1.92:1 | Fails | Lc -7.5 | 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 900.
-
Step 50
50
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE4
oklch(93.6% 0.016 148.4)
-
Step 200
200
#CCDFCE
oklch(88.5% 0.031 148.4)
-
Step 300
300
#A9CBAC
oklch(80.9% 0.056 147.4)
-
Step 400
400
#7AB081
oklch(70.7% 0.089 147.9)
-
Step 500
500
#559C60
oklch(63% 0.115 147.6)
-
Step 600
600
#368747
oklch(55.7% 0.125 148)
-
Step 700
700
#287238
oklch(49.1% 0.116 147.8)
-
Step 800
800
#235D2F
oklch(42.8% 0.096 147.9)
-
Step 900
900 (this color)
#1B4523
oklch(35.1% 0.075 147.8)
-
Step 950
950
#152D19
oklch(27.1% 0.048 148)
#1B4523 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) | #463F20 | 0.060 |
| Deuteranopia (no green cones) | #403B25 | 0.059 |
| Tritanopia (no blue cones) | #12443D | 0.043 |
| Achromatopsia (no color) | #3D3D3D | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4523
#1B4523
oklch(35.1% 0.075 147.8)
- #4F2B4E
#4F2B4E
oklch(35% 0.075 328)
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 #1B4523, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.014
- Pine Green #0A481E ΔE 0.018
- Forrest Green #154406 ΔE 0.032
- British Racing Green #05480D ΔE 0.035
- Hunter Green #0B4008 ΔE 0.037
- Darkgreen #054907 ΔE 0.040
- Dark Olive #373E02 ΔE 0.041
- Bottle Green #044A05 ΔE 0.043
Use #1B4523 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.