#304A38
Closest named color: Dark Slate Gray (#2F4F4F). oklch(38.2% 0.044 153.7), rgb(48, 74, 56).
Aa
White text reads best on this color (9.71:1).
About this color
#304A38 is a dark, muted green. In OKLCH its lightness is 38%, its chroma 0.044 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 0.037 away. White text reads best on it, at 9.71:1.
| Hue family | Greens |
| Lightness | dark (38%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.16:1 |
| White text | 9.71:1 |
Values
| HEX | #304A38 |
| RGB | rgb(48, 74, 56) |
| HSL | hsl(138, 21%, 24%) |
| OKLCH | oklch(38.2% 0.044 153.7) |
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 #304A38 | 9.71:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #304A38 | 2.16:1 | Fails | Lc 11.5 | Not readable |
| #304A38 text on white | 9.71:1 | AAA | Lc 92.5 | Preferred for body text |
| #304A38 text on black | 2.16:1 | Fails | Lc -10.0 | 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
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D0DDD4
oklch(88.5% 0.019 155.8)
-
Step 300
300
#B1C7B7
oklch(80.8% 0.033 154)
-
Step 400
400
#88AB91
oklch(70.8% 0.054 152.8)
-
Step 500
500
#699677
oklch(63.2% 0.068 154)
-
Step 600
600
#50805F
oklch(55.6% 0.073 153.4)
-
Step 700
700
#406C4F
oklch(49.1% 0.068 154.3)
-
Step 800
800
#355840
oklch(42.6% 0.057 153.4)
-
Step 900
900 (this color)
#304A38
oklch(38.2% 0.044 153.7)
-
Step 950
950
#1C2B20
oklch(27.2% 0.029 152.5)
#304A38 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) | #4A4637 | 0.040 |
| Deuteranopia (no green cones) | #464339 | 0.039 |
| Tritanopia (no blue cones) | #2C4945 | 0.023 |
| Achromatopsia (no color) | #444444 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #304A38
#304A38
oklch(38.2% 0.044 153.7)
- #523A4D
#523A4D
oklch(38.3% 0.045 334)
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 #304A38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.037
- Dark Blue Green #005249 ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.042
- Dark Teal #014D4E ΔE 0.044
- Evergreen #05472A ΔE 0.047
- Charcoal #264653 ΔE 0.053
- Pine Green #0A481E ΔE 0.056
- Deep Teal #00555A ΔE 0.058
Use #304A38 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.