#378166
Closest named color: Dark Sage (#598556). oklch(54.8% 0.086 166.5), rgb(55, 129, 102).
Aa
White text reads best on this color (4.67:1).
About this color
#378166 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.086 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.042 away. White text reads best on it, at 4.67:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #378166 |
| RGB | rgb(55, 129, 102) |
| HSL | hsl(158, 40%, 36%) |
| OKLCH | oklch(54.8% 0.086 166.5) |
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 #378166 | 4.67:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #378166 | 4.49:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #378166 text on white | 4.67:1 | AA | Lc 72.2 | Content text, not long reading |
| #378166 text on black | 4.49:1 | AA large text | Lc -29.4 | 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 600.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CDDED6
oklch(88.6% 0.021 166)
-
Step 300
300
#AAC9BB
oklch(80.9% 0.039 166.3)
-
Step 400
400
#7BAD98
oklch(70.6% 0.062 166.7)
-
Step 500
500
#57997F
oklch(63.1% 0.079 166.6)
-
Step 600
600 (this color)
#378166
oklch(54.8% 0.086 166.5)
-
Step 700
700
#2B6F57
oklch(49.1% 0.079 166.9)
-
Step 800
800
#255A47
oklch(42.6% 0.065 167.1)
-
Step 900
900
#244A3C
oklch(37.6% 0.05 167.6)
-
Step 950
950
#162C23
oklch(27.1% 0.033 165.9)
#378166 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) | #7E7965 | 0.085 |
| Deuteranopia (no green cones) | #737168 | 0.082 |
| Tritanopia (no blue cones) | #158179 | 0.032 |
| Achromatopsia (no color) | #747474 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378166
#378166
oklch(54.8% 0.086 166.5)
- #955C7B
#955C7B
oklch(54.8% 0.085 346.5)
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 #378166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.042
- Sea Green #2E8B57 ΔE 0.044
- Teal #008080 ΔE 0.044
- Bluegreen #017A79 ΔE 0.048
- Viridian #1E9167 ΔE 0.049
- Dark Cyan #008B8B ΔE 0.054
- Deep Aqua #08787F ΔE 0.059
- Jungle Green #048243 ΔE 0.060
Use #378166 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.