#509B6A
Closest named color: Ocean Green (#3D9973). oklch(62.8% 0.106 153.5), rgb(80, 155, 106).
Aa
Black text reads best on this color (6.23:1).
About this color
#509B6A is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.106 and its hue 154°. 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 6.23:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.23:1 |
| White text | 3.36:1 |
Values
| HEX | #509B6A |
| RGB | rgb(80, 155, 106) |
| HSL | hsl(141, 32%, 46%) |
| OKLCH | oklch(62.8% 0.106 153.5) |
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 #509B6A | 3.36:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #509B6A | 6.23:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #509B6A text on white | 3.36:1 | AA large text | Lc 60.9 | Content text, not long reading |
| #509B6A text on black | 6.23:1 | AA | Lc -40.8 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E3EDE5
oklch(93.6% 0.015 151.8)
-
Step 200
200
#CBDFD0
oklch(88.5% 0.029 153.3)
-
Step 300
300
#A8CBB1
oklch(80.9% 0.052 153)
-
Step 400
400
#77B089
oklch(70.7% 0.083 153.9)
-
Step 500
500 (this color)
#509B6A
oklch(62.8% 0.106 153.5)
-
Step 600
600
#318653
oklch(55.5% 0.114 153.8)
-
Step 700
700
#227243
oklch(49.2% 0.107 153.5)
-
Step 800
800
#1F5D37
oklch(42.8% 0.089 153.2)
-
Step 900
900
#204C30
oklch(37.7% 0.069 153.6)
-
Step 950
950
#142D1C
oklch(27.1% 0.045 152.8)
#509B6A 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) | #9B9167 | 0.093 |
| Deuteranopia (no green cones) | #90896D | 0.091 |
| Tritanopia (no blue cones) | #3F998E | 0.054 |
| Achromatopsia (no color) | #8C8C8C | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509B6A
#509B6A
oklch(62.8% 0.106 153.5)
- #AF6FA3
#AF6FA3
oklch(62.7% 0.106 333.8)
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 #509B6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.021
- Light Forest Green #4F9153 ΔE 0.036
- Muted Green #5FA052 ΔE 0.039
- Jade #1FA774 ΔE 0.039
- Moss #769958 ΔE 0.041
- Drab Green #749551 ΔE 0.042
- Flat Green #699D4C ΔE 0.043
- Slate Green #658D6D ΔE 0.047
Use #509B6A 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.