#559B79
Closest named color: Ocean Green (#3D9973). oklch(63.4% 0.088 161.3), rgb(85, 155, 121).
Aa
Black text reads best on this color (6.35:1).
About this color
#559B79 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.088 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.024 away. Black text reads best on it, at 6.35:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.088) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.35:1 |
| White text | 3.30:1 |
Values
| HEX | #559B79 |
| RGB | rgb(85, 155, 121) |
| HSL | hsl(151, 29%, 47%) |
| OKLCH | oklch(63.4% 0.088 161.3) |
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 #559B79 | 3.30:1 | AA large text | Lc -65.8 | Content text, not long reading |
| Black text on #559B79 | 6.35:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #559B79 text on white | 3.30:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #559B79 text on black | 6.35:1 | AA | Lc -41.4 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CCDED4
oklch(88.4% 0.024 161.7)
-
Step 300
300
#A9CAB8
oklch(81% 0.043 161.4)
-
Step 400
400
#79AE93
oklch(70.6% 0.069 161.8)
-
Step 500
500 (this color)
#559B79
oklch(63.4% 0.088 161.3)
-
Step 600
600
#358561
oklch(55.7% 0.097 161.2)
-
Step 700
700
#277050
oklch(49.1% 0.089 161.2)
-
Step 800
800
#225B42
oklch(42.6% 0.073 161.8)
-
Step 900
900
#224B38
oklch(37.7% 0.057 161.8)
-
Step 950
950
#152C21
oklch(27% 0.036 161.9)
#559B79 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) | #999277 | 0.085 |
| Deuteranopia (no green cones) | #8E8A7B | 0.082 |
| Tritanopia (no blue cones) | #429B91 | 0.036 |
| Achromatopsia (no color) | #8D8D8D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559B79
#559B79
oklch(63.4% 0.088 161.3)
- #AF759A
#AF759A
oklch(63.4% 0.088 341.3)
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 #559B79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.024
- Grey Teal #5E9B8A ΔE 0.028
- Dull Teal #5F9E8F ΔE 0.034
- Persian Green #2A9D8F ΔE 0.038
- Slate Green #658D6D ΔE 0.040
- Green Grey #77926F ΔE 0.041
- Sea #3C9992 ΔE 0.042
- Dusty Teal #4C9085 ΔE 0.044
Use #559B79 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.