#2B4537
Closest named color: Charcoal Grey (#3C4142). oklch(36.5% 0.04 160), rgb(43, 69, 55).
Aa
White text reads best on this color (10.45:1).
About this color
#2B4537 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.040 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.037 away. White text reads best on it, at 10.45:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.00:1 |
| White text | 10.45:1 |
Values
| HEX | #2B4537 |
| RGB | rgb(43, 69, 55) |
| HSL | hsl(148, 23%, 22%) |
| OKLCH | oklch(36.5% 0.04 160) |
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 #2B4537 | 10.45:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #2B4537 | 2.00:1 | Fails | Lc 9.7 | Not readable |
| #2B4537 text on white | 10.45:1 | AAA | Lc 94.2 | Preferred for body text |
| #2B4537 text on black | 2.00:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#D0DDD5
oklch(88.5% 0.018 159.1)
-
Step 300
300
#B1C7BA
oklch(80.9% 0.03 159.8)
-
Step 400
400
#87AA96
oklch(70.6% 0.048 159.8)
-
Step 500
500
#68957D
oklch(63% 0.061 160.7)
-
Step 600
600
#4F8066
oklch(55.7% 0.067 160)
-
Step 700
700
#3F6C54
oklch(49.1% 0.063 159.6)
-
Step 800
800
#355845
oklch(42.8% 0.052 159.4)
-
Step 900
900 (this color)
#2B4537
oklch(36.5% 0.04 160)
-
Step 950
950
#1B2A22
oklch(26.9% 0.025 160.8)
#2B4537 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) | #444136 | 0.038 |
| Deuteranopia (no green cones) | #403E38 | 0.038 |
| Tritanopia (no blue cones) | #254541 | 0.017 |
| Achromatopsia (no color) | #3F3F3F | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4537
#2B4537
oklch(36.5% 0.04 160)
- #4D3645
#4D3645
oklch(36.5% 0.04 340)
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 #2B4537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.037
- Evergreen #05472A ΔE 0.042
- Dark Teal #014D4E ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.045
- Onyx #343A40 ΔE 0.046
- Dark Blue Green #005249 ΔE 0.047
- Charcoal #264653 ΔE 0.047
- Pine Green #0A481E ΔE 0.055
Use #2B4537 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.