#559D75
Closest named color: Ocean Green (#3D9973). oklch(63.8% 0.095 157.9), rgb(85, 157, 117).
Aa
Black text reads best on this color (6.46:1).
About this color
#559D75 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.095 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.025 away. Black text reads best on it, at 6.46:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.46:1 |
| White text | 3.24:1 |
Values
| HEX | #559D75 |
| RGB | rgb(85, 157, 117) |
| HSL | hsl(147, 30%, 47%) |
| OKLCH | oklch(63.8% 0.095 157.9) |
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 #559D75 | 3.24:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #559D75 | 6.46:1 | AA | Lc 44.4 | Non-text elements, placeholder text |
| #559D75 text on white | 3.24:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #559D75 text on black | 6.46:1 | AA | Lc -42.1 | 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
#CCDFD3
oklch(88.6% 0.026 158.1)
-
Step 300
300
#A8CAB5
oklch(80.8% 0.047 158.1)
-
Step 400
400
#79AF8F
oklch(70.7% 0.074 157.9)
-
Step 500
500 (this color)
#559D75
oklch(63.8% 0.095 157.9)
-
Step 600
600
#34855B
oklch(55.5% 0.103 157.7)
-
Step 700
700
#25714B
oklch(49.1% 0.097 157.8)
-
Step 800
800
#215C3E
oklch(42.7% 0.079 158)
-
Step 900
900
#214B35
oklch(37.6% 0.061 158.6)
-
Step 950
950
#142C1F
oklch(26.9% 0.039 158.6)
#559D75 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) | #9C9373 | 0.089 |
| Deuteranopia (no green cones) | #918C77 | 0.085 |
| Tritanopia (no blue cones) | #439C92 | 0.044 |
| Achromatopsia (no color) | #8F8F8F | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #559D75
#559D75
oklch(63.8% 0.095 157.9)
- #B174A0
#B174A0
oklch(63.7% 0.096 337.5)
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 #559D75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.025
- Grey Teal #5E9B8A ΔE 0.035
- Dull Teal #5F9E8F ΔE 0.040
- Jade #1FA774 ΔE 0.042
- Persian Green #2A9D8F ΔE 0.044
- Moss #769958 ΔE 0.044
- Green Grey #77926F ΔE 0.044
- Tea #65AB7C ΔE 0.045
Use #559D75 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.