#2B4339
Closest named color: Charcoal Grey (#3C4142). oklch(36% 0.035 166.6), rgb(43, 67, 57).
Aa
White text reads best on this color (10.68:1).
About this color
#2B4339 is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.035 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.032 away. White text reads best on it, at 10.68:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #2B4339 |
| RGB | rgb(43, 67, 57) |
| HSL | hsl(155, 22%, 22%) |
| OKLCH | oklch(36% 0.035 166.6) |
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 #2B4339 | 10.68:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #2B4339 | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #2B4339 text on white | 10.68:1 | AAA | Lc 94.7 | Preferred for body text |
| #2B4339 text on black | 1.96:1 | Fails | Lc -7.9 | 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
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D1DCD7
oklch(88.5% 0.014 167.1)
-
Step 300
300
#B2C6BD
oklch(80.9% 0.025 166.9)
-
Step 400
400
#89A99B
oklch(70.7% 0.041 166.8)
-
Step 500
500
#6A9482
oklch(63% 0.054 166.3)
-
Step 600
600
#517E6C
oklch(55.5% 0.057 167.2)
-
Step 700
700
#426B5A
oklch(49.2% 0.054 166.1)
-
Step 800
800
#36574A
oklch(42.7% 0.045 167.5)
-
Step 900
900 (this color)
#2B4339
oklch(36% 0.035 166.6)
-
Step 950
950
#1C2A24
oklch(27% 0.022 166.4)
#2B4339 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) | #424039 | 0.035 |
| Deuteranopia (no green cones) | #3E3D3A | 0.034 |
| Tritanopia (no blue cones) | #254340 | 0.013 |
| Achromatopsia (no color) | #3E3E3E | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4339
#2B4339
oklch(36% 0.035 166.6)
- #4B3641
#4B3641
oklch(36.1% 0.035 346.2)
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 #2B4339, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.032
- Onyx #343A40 ΔE 0.038
- Charcoal #264653 ΔE 0.043
- Dark Teal #014D4E ΔE 0.044
- Evergreen #05472A ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dark Blue Green #005249 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.053
Use #2B4339 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.