#559178
Closest named color: Slate Green (#658D6D). oklch(60.8% 0.074 165.5), rgb(85, 145, 120).
Aa
Black text reads best on this color (5.70:1).
About this color
#559178 is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.074 and its hue 166°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.021 away. Black text reads best on it, at 5.70:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.074) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.70:1 |
| White text | 3.67:1 |
Values
| HEX | #559178 |
| RGB | rgb(85, 145, 120) |
| HSL | hsl(155, 26%, 45%) |
| OKLCH | oklch(60.8% 0.074 165.5) |
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 #559178 | 3.67:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #559178 | 5.70:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #559178 text on white | 3.67:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #559178 text on black | 5.70:1 | AA | Lc -37.4 | 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 500.
-
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
#CEDED6
oklch(88.6% 0.02 164.5)
-
Step 300
300
#ACC8BB
oklch(80.8% 0.035 165.8)
-
Step 400
400
#7EAD98
oklch(70.8% 0.059 165.4)
-
Step 500
500 (this color)
#559178
oklch(60.8% 0.074 165.5)
-
Step 600
600
#408268
oklch(55.5% 0.08 165.7)
-
Step 700
700
#316E56
oklch(49% 0.075 165.2)
-
Step 800
800
#2A5A47
oklch(42.8% 0.062 165.5)
-
Step 900
900
#274A3B
oklch(37.8% 0.049 164.6)
-
Step 950
950
#172B23
oklch(26.9% 0.03 166.8)
#559178 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) | #8F8977 | 0.075 |
| Deuteranopia (no green cones) | #85827A | 0.072 |
| Tritanopia (no blue cones) | #45918A | 0.029 |
| Achromatopsia (no color) | #858585 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559178
#559178
oklch(60.8% 0.074 165.5)
- #A3718C
#A3718C
oklch(60.8% 0.073 345.9)
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 #559178, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.021
- Dusty Teal #4C9085 ΔE 0.021
- Ocean Green #3D9973 ΔE 0.033
- Grey Teal #5E9B8A ΔE 0.037
- Sea #3C9992 ΔE 0.039
- Green Grey #77926F ΔE 0.040
- Persian Green #2A9D8F ΔE 0.044
- Blue Green #0F9B8E ΔE 0.046
Use #559178 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.