#99BF59
Closest named color: Light Olive Green (#A4BE5C). oklch(75.5% 0.137 126.4), rgb(153, 191, 89).
Aa
Black text reads best on this color (9.95:1).
About this color
#99BF59 is a medium-light, moderately saturated green. In OKLCH its lightness is 75%, its chroma 0.137 and its hue 126°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.015 away. Black text reads best on it, at 9.95:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 9.95:1 |
| White text | 2.11:1 |
Values
| HEX | #99BF59 |
| RGB | rgb(153, 191, 89) |
| HSL | hsl(82, 44%, 55%) |
| OKLCH | oklch(75.5% 0.137 126.4) |
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 #99BF59 | 2.11:1 | Fails | Lc -45.9 | Large or bold text, headings |
| Black text on #99BF59 | 9.95:1 | AAA | Lc 62.7 | Content text, not long reading |
| #99BF59 text on white | 2.11:1 | Fails | Lc 41.2 | Non-text elements, placeholder text |
| #99BF59 text on black | 9.95:1 | AAA | Lc -61.0 | Content text, not long reading |
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 400.
-
Step 50
50
#F3F7EF
oklch(97.1% 0.011 128.6)
-
Step 100
100
#E5EDDC
oklch(93.5% 0.024 127.6)
-
Step 200
200
#D1DFBE
oklch(88.4% 0.047 126.1)
-
Step 300
300
#B2CB8F
oklch(80.8% 0.085 126.6)
-
Step 400
400 (this color)
#99BF59
oklch(75.5% 0.137 126.4)
-
Step 500
500
#709A00
oklch(63.2% 0.162 126.5)
-
Step 600
600
#5E8100
oklch(55.6% 0.142 126.3)
-
Step 700
700
#4E6D00
oklch(49.2% 0.126 126.7)
-
Step 800
800
#3F5900
oklch(42.7% 0.11 126.7)
-
Step 900
900
#344A00
oklch(37.7% 0.097 126.5)
-
Step 950
950
#1E2C00
oklch(27% 0.069 126.1)
#99BF59 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) | #C8B44F | 0.066 |
| Deuteranopia (no green cones) | #C3B25F | 0.067 |
| Tritanopia (no blue cones) | #9EB7A8 | 0.110 |
| Achromatopsia (no color) | #B2B2B2 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BF59
#99BF59
oklch(75.5% 0.137 126.4)
- #C697F4
#C697F4
oklch(75.5% 0.138 306.6)
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 #99BF59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.015
- Light Olive #ACBF69 ΔE 0.032
- Tan Green #A9BE70 ΔE 0.036
- Pea #A4BF20 ΔE 0.039
- Light Moss Green #A6C875 ΔE 0.040
- Bright Olive #9CBB04 ΔE 0.044
- Mustard Green #A8B504 ΔE 0.045
- Avocado #90B134 ΔE 0.046
Use #99BF59 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.