#306D58
Closest named color: Dark Green Blue (#1F6357). oklch(48.8% 0.072 168.2), rgb(48, 109, 88).
Aa
White text reads best on this color (6.07:1).
About this color
#306D58 is a medium-dark, moderately saturated green. In OKLCH its lightness is 49%, its chroma 0.072 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.037 away. White text reads best on it, at 6.07:1.
| Hue family | Greens |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.45:1 |
| White text | 6.07:1 |
Values
| HEX | #306D58 |
| RGB | rgb(48, 109, 88) |
| HSL | hsl(159, 39%, 31%) |
| OKLCH | oklch(48.8% 0.072 168.2) |
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 #306D58 | 6.07:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #306D58 | 3.45:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #306D58 text on white | 6.07:1 | AA | Lc 80.2 | Fine for body text |
| #306D58 text on black | 3.45:1 | AA large text | Lc -21.7 | Dividers and decoration only |
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 700.
-
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
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ACC8BC
oklch(80.9% 0.035 167.7)
-
Step 400
400
#7EAC9A
oklch(70.6% 0.056 168.6)
-
Step 500
500
#5C9881
oklch(63.2% 0.072 167.7)
-
Step 600
600
#40826B
oklch(55.6% 0.077 168.4)
-
Step 700
700 (this color)
#306D58
oklch(48.8% 0.072 168.2)
-
Step 800
800
#2A5A49
oklch(42.8% 0.06 168)
-
Step 900
900
#274A3D
oklch(37.8% 0.047 167.9)
-
Step 950
950
#172B24
oklch(26.9% 0.029 169.8)
#306D58 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) | #6A6657 | 0.073 |
| Deuteranopia (no green cones) | #616059 | 0.069 |
| Tritanopia (no blue cones) | #166E67 | 0.025 |
| Achromatopsia (no color) | #626262 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306D58
#306D58
oklch(48.8% 0.072 168.2)
- #7E4E67
#7E4E67
oklch(48.7% 0.073 347.6)
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 #306D58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.039
- Dark Aqua #05696B ΔE 0.041
- Deep Turquoise #017374 ΔE 0.043
- Bluegreen #017A79 ΔE 0.054
- Deep Aqua #08787F ΔE 0.060
- Dark Olive Green #556B2F ΔE 0.061
- Pine #2B5D34 ΔE 0.064
Use #306D58 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.