#378668
Closest named color: Sea Green (#2E8B57). oklch(56.2% 0.091 165.4), rgb(55, 134, 104).
Aa
Black text reads best on this color (4.77:1).
About this color
#378668 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.091 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.034 away. Black text reads best on it, at 4.77:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.091) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #378668 |
| RGB | rgb(55, 134, 104) |
| HSL | hsl(157, 42%, 37%) |
| OKLCH | oklch(56.2% 0.091 165.4) |
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 #378668 | 4.40:1 | AA large text | Lc -75.8 | Fine for body text |
| Black text on #378668 | 4.77:1 | AA | Lc 33.8 | Non-text elements, placeholder text |
| #378668 text on white | 4.40:1 | AA large text | Lc 70.3 | Content text, not long reading |
| #378668 text on black | 4.77:1 | AA | Lc -31.4 | Non-text elements, placeholder text |
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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CCDED5
oklch(88.5% 0.023 164.5)
-
Step 300
300
#A9C9BA
oklch(80.8% 0.04 165.4)
-
Step 400
400
#79AE97
oklch(70.7% 0.066 165.8)
-
Step 500
500
#549A7D
oklch(63.2% 0.084 165.1)
-
Step 600
600 (this color)
#378668
oklch(56.2% 0.091 165.4)
-
Step 700
700
#267055
oklch(49.2% 0.085 165.4)
-
Step 800
800
#225B46
oklch(42.7% 0.07 165.9)
-
Step 900
900
#224B3A
oklch(37.8% 0.055 164.4)
-
Step 950
950
#152C22
oklch(27.1% 0.035 164.2)
#378668 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) | #837D66 | 0.090 |
| Deuteranopia (no green cones) | #78756A | 0.087 |
| Tritanopia (no blue cones) | #0F867E | 0.036 |
| Achromatopsia (no color) | #787878 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #378668
#378668
oklch(56.2% 0.091 165.4)
- #9B5E81
#9B5E81
oklch(56.1% 0.092 345.1)
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 #378668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.034
- Viridian #1E9167 ΔE 0.035
- Dark Sage #598556 ΔE 0.036
- Teal #008080 ΔE 0.050
- Dark Cyan #008B8B ΔE 0.051
- Dusty Teal #4C9085 ΔE 0.053
- Slate Green #658D6D ΔE 0.054
- Light Forest Green #4F9153 ΔE 0.055
Use #378668 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.