#2B4539
Closest named color: Charcoal Grey (#3C4142). oklch(36.5% 0.038 163.9), rgb(43, 69, 57).
Aa
White text reads best on this color (10.43:1).
About this color
#2B4539 is a dark, muted green. In OKLCH its lightness is 37%, its chroma 0.038 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.034 away. White text reads best on it, at 10.43:1.
| Hue family | Greens |
| Lightness | dark (37%) |
| Chroma | muted (0.038) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.01:1 |
| White text | 10.43:1 |
Values
| HEX | #2B4539 |
| RGB | rgb(43, 69, 57) |
| HSL | hsl(152, 23%, 22%) |
| OKLCH | oklch(36.5% 0.038 163.9) |
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 #2B4539 | 10.43:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #2B4539 | 2.01:1 | Fails | Lc 9.8 | Not readable |
| #2B4539 text on white | 10.43:1 | AAA | Lc 94.2 | Preferred for body text |
| #2B4539 text on black | 2.01:1 | Fails | Lc -8.4 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DDD6
oklch(88.6% 0.017 162.7)
-
Step 300
300
#B1C7BC
oklch(81% 0.028 164.2)
-
Step 400
400
#87AA99
oklch(70.7% 0.046 164)
-
Step 500
500
#689580
oklch(63.1% 0.059 164.1)
-
Step 600
600
#4F7F69
oklch(55.5% 0.063 163.7)
-
Step 700
700
#3F6B58
oklch(49% 0.058 164.8)
-
Step 800
800
#345848
oklch(42.8% 0.05 164.3)
-
Step 900
900 (this color)
#2B4539
oklch(36.5% 0.038 163.9)
-
Step 950
950
#1B2A23
oklch(26.9% 0.024 164.2)
#2B4539 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) | #444138 | 0.038 |
| Deuteranopia (no green cones) | #403E3A | 0.038 |
| Tritanopia (no blue cones) | #254542 | 0.016 |
| Achromatopsia (no color) | #404040 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4539
#2B4539
oklch(36.5% 0.038 163.9)
- #4D3643
#4D3643
oklch(36.4% 0.039 344.3)
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 #2B4539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.034
- Dark Teal #014D4E ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.043
- Charcoal #264653 ΔE 0.044
- Onyx #343A40 ΔE 0.044
- Evergreen #05472A ΔE 0.044
- Dark Blue Green #005249 ΔE 0.046
- Pine Green #0A481E ΔE 0.058
Use #2B4539 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.