#374B3D
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.1% 0.034 154.1), rgb(55, 75, 61).
Aa
White text reads best on this color (9.39:1).
About this color
#374B3D is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.034 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.028 away. White text reads best on it, at 9.39:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #374B3D |
| RGB | rgb(55, 75, 61) |
| HSL | hsl(138, 15%, 25%) |
| OKLCH | oklch(39.1% 0.034 154.1) |
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 #374B3D | 9.39:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #374B3D | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #374B3D text on white | 9.39:1 | AAA | Lc 91.7 | Preferred for body text |
| #374B3D text on black | 2.23:1 | Fails | Lc -10.7 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E6EBE7
oklch(93.5% 0.008 151.9)
-
Step 200
200
#D2DCD5
oklch(88.5% 0.014 155.6)
-
Step 300
300
#B4C6B9
oklch(80.9% 0.027 154.4)
-
Step 400
400
#8DA995
oklch(70.8% 0.042 154.1)
-
Step 500
500
#71937B
oklch(63.1% 0.052 154)
-
Step 600
600
#597D64
oklch(55.5% 0.056 154)
-
Step 700
700
#486A53
oklch(49.1% 0.054 154.4)
-
Step 800
800
#3C5644
oklch(42.6% 0.043 154)
-
Step 900
900 (this color)
#374B3D
oklch(39.1% 0.034 154.1)
-
Step 950
950
#1E2A22
oklch(27.1% 0.022 155.5)
#374B3D 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) | #4B483C | 0.031 |
| Deuteranopia (no green cones) | #48453E | 0.032 |
| Tritanopia (no blue cones) | #344A47 | 0.018 |
| Achromatopsia (no color) | #464646 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374B3D
#374B3D
oklch(39.1% 0.034 154.1)
- #513F4D
#513F4D
oklch(39.2% 0.033 334.1)
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 #374B3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.028
- Charcoal Grey #3C4142 ΔE 0.037
- Dark Blue Green #005249 ΔE 0.043
- Dark Teal #014D4E ΔE 0.047
- Charcoal #264653 ΔE 0.049
- Deep Teal #00555A ΔE 0.056
- Onyx #343A40 ΔE 0.060
- Evergreen #05472A ΔE 0.060
Use #374B3D 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.