#509E67
Closest named color: Ocean Green (#3D9973). oklch(63.5% 0.114 151.5), rgb(80, 158, 103).
Aa
Black text reads best on this color (6.42:1).
About this color
#509E67 is a medium-light, moderately saturated green. In OKLCH its lightness is 63%, its chroma 0.114 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.029 away. Black text reads best on it, at 6.42:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #509E67 |
| RGB | rgb(80, 158, 103) |
| HSL | hsl(138, 33%, 47%) |
| OKLCH | oklch(63.5% 0.114 151.5) |
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 #509E67 | 3.26:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #509E67 | 6.42:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #509E67 text on white | 3.26:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #509E67 text on black | 6.42:1 | AA | Lc -41.9 | 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
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CBDFCF
oklch(88.4% 0.03 151.5)
-
Step 300
300
#A7CBAF
oklch(80.8% 0.055 151.7)
-
Step 400
400
#76B185
oklch(70.8% 0.089 151.6)
-
Step 500
500 (this color)
#509E67
oklch(63.5% 0.114 151.5)
-
Step 600
600
#2E874D
oklch(55.6% 0.123 151.6)
-
Step 700
700
#1F733E
oklch(49.3% 0.115 151.5)
-
Step 800
800
#1D5D33
oklch(42.6% 0.095 151.4)
-
Step 900
900
#1F4D2D
oklch(37.9% 0.074 151.3)
-
Step 950
950
#132D1B
oklch(27% 0.047 152.1)
#509E67 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) | #9F9363 | 0.098 |
| Deuteranopia (no green cones) | #938B6A | 0.095 |
| Tritanopia (no blue cones) | #3F9C90 | 0.061 |
| Achromatopsia (no color) | #8E8E8E | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509E67
#509E67
oklch(63.5% 0.114 151.5)
- #B270AA
#B270AA
oklch(63.5% 0.113 331.2)
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 #509E67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.029
- Muted Green #5FA052 ΔE 0.030
- Jade #1FA774 ΔE 0.033
- Flat Green #699D4C ΔE 0.036
- Moss #769958 ΔE 0.040
- Off Green #6BA353 ΔE 0.040
- Light Forest Green #4F9153 ΔE 0.040
- Algae #54AC68 ΔE 0.042
Use #509E67 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.