#374F3A
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.1% 0.046 147.9), rgb(55, 79, 58).
Aa
White text reads best on this color (8.96:1).
About this color
#374F3A is a dark, muted green. In OKLCH its lightness is 40%, its chroma 0.046 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.035 away. White text reads best on it, at 8.96:1.
| Hue family | Greens |
| Lightness | dark (40%) |
| Chroma | muted (0.046) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.34:1 |
| White text | 8.96:1 |
Values
| HEX | #374F3A |
| RGB | rgb(55, 79, 58) |
| HSL | hsl(128, 18%, 26%) |
| OKLCH | oklch(40.1% 0.046 147.9) |
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 #374F3A | 8.96:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #374F3A | 2.34:1 | Fails | Lc 13.4 | Not readable |
| #374F3A text on white | 8.96:1 | AAA | Lc 90.5 | Preferred for body text |
| #374F3A text on black | 2.34:1 | Fails | Lc -11.8 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D1DDD2
oklch(88.5% 0.02 147.8)
-
Step 300
300
#B2C7B4
oklch(80.8% 0.035 148)
-
Step 400
400
#8AAA8E
oklch(70.6% 0.054 148.4)
-
Step 500
500
#6C9571
oklch(62.9% 0.07 147.9)
-
Step 600
600
#54805A
oklch(55.7% 0.076 147.9)
-
Step 700
700
#446C49
oklch(49.1% 0.072 147.4)
-
Step 800
800
#38583C
oklch(42.7% 0.059 147.5)
-
Step 900
900 (this color)
#374F3A
oklch(40.1% 0.046 147.9)
-
Step 950
950
#1D2A1E
oklch(26.9% 0.028 146.7)
#374F3A 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) | #504B39 | 0.038 |
| Deuteranopia (no green cones) | #4C483B | 0.038 |
| Tritanopia (no blue cones) | #344E49 | 0.026 |
| Achromatopsia (no color) | #494949 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374F3A
#374F3A
oklch(40.1% 0.046 147.9)
- #563F55
#563F55
oklch(40.1% 0.047 327.8)
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 #374F3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- Dark Blue Green #005249 ΔE 0.042
- Pine #2B5D34 ΔE 0.051
- Dark Teal #014D4E ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.053
- Deep Teal #00555A ΔE 0.057
- Navy Green #35530A ΔE 0.061
- Spruce #0A5F38 ΔE 0.061
Use #374F3A 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.