#599F09
Closest named color: Grassy Green (#419C03). oklch(63.1% 0.178 133.8), rgb(89, 159, 9).
Aa
Black text reads best on this color (6.38:1).
About this color
#599F09 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.178 and its hue 134°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.024 away. Black text reads best on it, at 6.38:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.178) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.38:1 |
| White text | 3.28:1 |
Values
| HEX | #599F09 |
| RGB | rgb(89, 159, 9) |
| HSL | hsl(88, 89%, 33%) |
| OKLCH | oklch(63.1% 0.178 133.8) |
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 #599F09 | 3.28:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #599F09 | 6.38:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #599F09 text on white | 3.28:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #599F09 text on black | 6.38:1 | AA | Lc -41.8 | 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
#F2F7EF
oklch(97% 0.012 133.4)
-
Step 100
100
#E3EEDD
oklch(93.6% 0.025 134.3)
-
Step 200
200
#CCE1C0
oklch(88.5% 0.05 134.1)
-
Step 300
300
#AACD94
oklch(80.8% 0.086 133.7)
-
Step 400
400
#7CB354
oklch(70.7% 0.139 133.7)
-
Step 500
500 (this color)
#599F09
oklch(63.1% 0.178 133.8)
-
Step 600
600
#498600
oklch(55.7% 0.159 133.9)
-
Step 700
700
#3D7100
oklch(49.3% 0.141 133.8)
-
Step 800
800
#315C00
oklch(42.6% 0.122 133.6)
-
Step 900
900
#284D00
oklch(37.7% 0.108 133.7)
-
Step 950
950
#162E02
oklch(27.1% 0.075 134)
#599F09 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) | #A69100 | 0.105 |
| Deuteranopia (no green cones) | #9C8C22 | 0.102 |
| Tritanopia (no blue cones) | #589887 | 0.133 |
| Achromatopsia (no color) | #8E8E8E | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #599F09
#599F09
oklch(63.1% 0.178 133.8)
- #AF63D4
#AF63D4
oklch(63.2% 0.178 313.5)
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 #599F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.024
- Grass Green #3F9B0B ΔE 0.027
- Leaf Green #5CA904 ΔE 0.030
- Mid Green #50A747 ΔE 0.038
- Grass #5CAC2D ΔE 0.038
- Kelly Green #02AB2E ΔE 0.046
- Medium Green #39AD48 ΔE 0.046
- Leaf #71AA34 ΔE 0.048
Use #599F09 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.