#2B5243
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.5% 0.052 167), rgb(43, 82, 67).
Aa
White text reads best on this color (8.78:1).
About this color
#2B5243 is a dark, muted green. In OKLCH its lightness is 40%, its chroma 0.052 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.026 away. White text reads best on it, at 8.78:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #2B5243 |
| RGB | rgb(43, 82, 67) |
| HSL | hsl(157, 31%, 25%) |
| OKLCH | oklch(40.5% 0.052 167) |
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 #2B5243 | 8.78:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #2B5243 | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #2B5243 text on white | 8.78:1 | AAA | Lc 90.0 | Fine for body text |
| #2B5243 text on black | 2.39:1 | Fails | Lc -12.3 | 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 800.
-
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
#CFDDD7
oklch(88.5% 0.017 168.4)
-
Step 300
300
#AFC7BC
oklch(80.8% 0.03 166.3)
-
Step 400
400
#84AB9A
oklch(70.8% 0.049 166.5)
-
Step 500
500
#649682
oklch(63.2% 0.062 167.4)
-
Step 600
600
#4A806B
oklch(55.6% 0.067 167.1)
-
Step 700
700
#3B6C59
oklch(49.1% 0.062 166.9)
-
Step 800
800 (this color)
#2B5243
oklch(40.5% 0.052 167)
-
Step 900
900
#2C493D
oklch(37.8% 0.041 166.3)
-
Step 950
950
#1A2B24
oklch(27.1% 0.026 166.8)
#2B5243 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) | #504D42 | 0.052 |
| Deuteranopia (no green cones) | #4A4944 | 0.049 |
| Tritanopia (no blue cones) | #1F524E | 0.020 |
| Achromatopsia (no color) | #4B4B4B | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5243
#2B5243
oklch(40.5% 0.052 167)
- #5E3D4E
#5E3D4E
oklch(40.4% 0.053 347.5)
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 #2B5243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.026
- Dark Blue Green #005249 ΔE 0.027
- Dark Teal #014D4E ΔE 0.040
- Deep Teal #00555A ΔE 0.040
- Pine #2B5D34 ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.054
- Spruce #0A5F38 ΔE 0.055
- Charcoal #264653 ΔE 0.056
Use #2B5243 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.