#2B4D3F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39% 0.047 165.8), rgb(43, 77, 63).
Aa
White text reads best on this color (9.39:1).
About this color
#2B4D3F is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.047 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.027 away. White text reads best on it, at 9.39:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #2B4D3F |
| RGB | rgb(43, 77, 63) |
| HSL | hsl(155, 28%, 24%) |
| OKLCH | oklch(39% 0.047 165.8) |
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 #2B4D3F | 9.39:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #2B4D3F | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #2B4D3F text on white | 9.39:1 | AAA | Lc 91.6 | Preferred for body text |
| #2B4D3F text on black | 2.23:1 | Fails | Lc -10.8 | 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
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CEDDD6
oklch(88.4% 0.019 166.3)
-
Step 300
300
#ACC8BB
oklch(80.8% 0.035 165.8)
-
Step 400
400
#7FAC98
oklch(70.6% 0.057 165.7)
-
Step 500
500
#5D987F
oklch(63.2% 0.073 165.4)
-
Step 600
600
#428269
oklch(55.6% 0.078 166.1)
-
Step 700
700
#336E57
oklch(49.2% 0.073 165.7)
-
Step 800
800
#2B5947
oklch(42.6% 0.06 166)
-
Step 900
900 (this color)
#2B4D3F
oklch(39% 0.047 165.8)
-
Step 950
950
#182B23
oklch(27% 0.029 165.8)
#2B4D3F 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) | #4C493E | 0.047 |
| Deuteranopia (no green cones) | #464540 | 0.044 |
| Tritanopia (no blue cones) | #224D49 | 0.018 |
| Achromatopsia (no color) | #464646 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4D3F
#2B4D3F
oklch(39% 0.047 165.8)
- #573B4A
#573B4A
oklch(39% 0.046 346.1)
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 #2B4D3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.027
- Dark Blue Green #005249 ΔE 0.029
- Dark Teal #014D4E ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.046
- Deep Teal #00555A ΔE 0.046
- Charcoal #264653 ΔE 0.048
- Evergreen #05472A ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.060
Use #2B4D3F 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.