#509F72
Closest named color: Ocean Green (#3D9973). oklch(64% 0.104 156.7), rgb(80, 159, 114).
Aa
Black text reads best on this color (6.54:1).
About this color
#509F72 is a medium-light, moderately saturated green. In OKLCH its lightness is 64%, its chroma 0.104 and its hue 157°. 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 6.54:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.54:1 |
| White text | 3.20:1 |
Values
| HEX | #509F72 |
| RGB | rgb(80, 159, 114) |
| HSL | hsl(146, 33%, 47%) |
| OKLCH | oklch(64% 0.104 156.7) |
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 #509F72 | 3.20:1 | AA large text | Lc -64.5 | Content text, not long reading |
| Black text on #509F72 | 6.54:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #509F72 text on white | 3.20:1 | AA large text | Lc 59.1 | Large or bold text, headings |
| #509F72 text on black | 6.54:1 | AA | Lc -42.6 | 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
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CBDFD2
oklch(88.5% 0.028 157.3)
-
Step 300
300
#A7CBB3
oklch(80.9% 0.051 155.9)
-
Step 400
400
#75B08C
oklch(70.6% 0.081 156.8)
-
Step 500
500 (this color)
#509F72
oklch(64% 0.104 156.7)
-
Step 600
600
#2B8757
oklch(55.7% 0.114 156.4)
-
Step 700
700
#1C7247
oklch(49.1% 0.106 156.5)
-
Step 800
800
#1B5D3B
oklch(42.7% 0.087 156.7)
-
Step 900
900
#1D4C33
oklch(37.6% 0.067 157.5)
-
Step 950
950
#132D1E
oklch(27.1% 0.043 156.6)
#509F72 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) | #9E956F | 0.095 |
| Deuteranopia (no green cones) | #928C75 | 0.093 |
| Tritanopia (no blue cones) | #3B9E93 | 0.049 |
| Achromatopsia (no color) | #909090 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509F72
#509F72
oklch(64% 0.104 156.7)
- #B473A3
#B473A3
oklch(64% 0.103 336.9)
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 #509F72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.025
- Jade #1FA774 ΔE 0.033
- Muted Green #5FA052 ΔE 0.042
- Tea #65AB7C ΔE 0.043
- Grey Teal #5E9B8A ΔE 0.044
- Moss #769958 ΔE 0.044
- Algae #54AC68 ΔE 0.045
- Dark Seafoam Green #3EAF76 ΔE 0.046
Use #509F72 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.