#599B00
Closest named color: Grassy Green (#419C03). oklch(62.1% 0.175 133), rgb(89, 155, 0).
Aa
Black text reads best on this color (6.11:1).
About this color
#599B00 is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.175 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.021 away. Black text reads best on it, at 6.11:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.175) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #599B00 |
| RGB | rgb(89, 155, 0) |
| HSL | hsl(86, 100%, 30%) |
| OKLCH | oklch(62.1% 0.175 133) |
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 #599B00 | 3.43:1 | AA large text | Lc -67.0 | Content text, not long reading |
| Black text on #599B00 | 6.11:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #599B00 text on white | 3.43:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #599B00 text on black | 6.11:1 | AA | Lc -40.2 | 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
#CDE0C1
oklch(88.4% 0.046 133.2)
-
Step 300
300
#ABCD94
oklch(80.9% 0.086 133.1)
-
Step 400
400
#7EB255
oklch(70.6% 0.136 133)
-
Step 500
500 (this color)
#599B00
oklch(62.1% 0.175 133)
-
Step 600
600
#4C8500
oklch(55.5% 0.157 132.9)
-
Step 700
700
#3F7000
oklch(49.1% 0.138 133)
-
Step 800
800
#335C00
oklch(42.8% 0.12 132.9)
-
Step 900
900
#294D00
oklch(37.8% 0.107 133.2)
-
Step 950
950
#172D02
oklch(26.8% 0.073 133)
#599B00 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) | #A28E00 | 0.101 |
| Deuteranopia (no green cones) | #99891E | 0.099 |
| Tritanopia (no blue cones) | #599483 | 0.132 |
| Achromatopsia (no color) | #8A8A8A | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #599B00
#599B00
oklch(62.1% 0.175 133)
- #AA61D0
#AA61D0
oklch(62.1% 0.174 312.8)
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 #599B00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.021
- Grass Green #3F9B0B ΔE 0.022
- Leaf Green #5CA904 ΔE 0.041
- Dark Yellow Green #728F02 ΔE 0.043
- Mid Green #50A747 ΔE 0.045
- Olive Drab #6B8E23 ΔE 0.047
- Sap Green #5C8B15 ΔE 0.048
- Grass #5CAC2D ΔE 0.049
Use #599B00 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.