#559B71
Closest named color: Ocean Green (#3D9973). oklch(63.2% 0.096 156), rgb(85, 155, 113).
Aa
Black text reads best on this color (6.31:1).
About this color
#559B71 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.096 and its hue 156°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.021 away. Black text reads best on it, at 6.31:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.096) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.31:1 |
| White text | 3.32:1 |
Values
| HEX | #559B71 |
| RGB | rgb(85, 155, 113) |
| HSL | hsl(144, 29%, 47%) |
| OKLCH | oklch(63.2% 0.096 156) |
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 #559B71 | 3.32:1 | AA large text | Lc -66.0 | Content text, not long reading |
| Black text on #559B71 | 6.31:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #559B71 text on white | 3.32:1 | AA large text | Lc 60.5 | Content text, not long reading |
| #559B71 text on black | 6.31:1 | AA | Lc -41.2 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDFD2
oklch(88.6% 0.027 155.9)
-
Step 300
300
#A9CAB4
oklch(80.9% 0.047 156)
-
Step 400
400
#7AAF8D
oklch(70.7% 0.075 155.8)
-
Step 500
500 (this color)
#559B71
oklch(63.2% 0.096 156)
-
Step 600
600
#368559
oklch(55.5% 0.104 156.1)
-
Step 700
700
#287149
oklch(49.2% 0.097 156)
-
Step 800
800
#235C3C
oklch(42.7% 0.08 155.9)
-
Step 900
900
#224B33
oklch(37.6% 0.062 156)
-
Step 950
950
#152C1E
oklch(26.9% 0.039 155.9)
#559B71 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) | #9A916F | 0.087 |
| Deuteranopia (no green cones) | #908A73 | 0.085 |
| Tritanopia (no blue cones) | #459A90 | 0.046 |
| Achromatopsia (no color) | #8D8D8D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559B71
#559B71
oklch(63.2% 0.096 156)
- #AE73A0
#AE73A0
oklch(63.2% 0.096 335.7)
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 #559B71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.021
- Grey Teal #5E9B8A ΔE 0.039
- Slate Green #658D6D ΔE 0.041
- Moss #769958 ΔE 0.042
- Green Grey #77926F ΔE 0.043
- Jade #1FA774 ΔE 0.043
- Light Forest Green #4F9153 ΔE 0.044
- Drab Green #749551 ΔE 0.045
Use #559B71 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.