#99C552
Closest named color: Light Olive Green (#A4BE5C). oklch(76.8% 0.152 127.2), rgb(153, 197, 82).
Aa
Black text reads best on this color (10.46:1).
About this color
#99C552 is a medium-light, vivid green. In OKLCH its lightness is 77%, its chroma 0.152 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Light Olive Green (#A4BE5C), ΔE 0.028 away. Black text reads best on it, at 10.46:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Light Olive Green (#A4BE5C) |
| Black text | 10.46:1 |
| White text | 2.00:1 |
Values
| HEX | #99C552 |
| RGB | rgb(153, 197, 82) |
| HSL | hsl(83, 50%, 55%) |
| OKLCH | oklch(76.8% 0.152 127.2) |
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 #99C552 | 2.00:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #99C552 | 10.46:1 | AAA | Lc 65.1 | Content text, not long reading |
| #99C552 text on white | 2.00:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #99C552 text on black | 10.46:1 | AAA | Lc -63.6 | 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 300.
-
Step 50
50
#F2F8EA
oklch(97.1% 0.019 125.8)
-
Step 100
100
#E2F0D1
oklch(93.6% 0.044 127.1)
-
Step 200
200
#CAE4A8
oklch(88.5% 0.084 127.1)
-
Step 300
300 (this color)
#99C552
oklch(76.8% 0.152 127.2)
-
Step 400
400
#81B400
oklch(70.7% 0.183 127.2)
-
Step 500
500
#6E9A00
oklch(63% 0.163 127.2)
-
Step 600
600
#5C8200
oklch(55.7% 0.144 127.3)
-
Step 700
700
#4D6D00
oklch(49.1% 0.127 127.1)
-
Step 800
800
#3E5900
oklch(42.6% 0.11 127.2)
-
Step 900
900
#334A00
oklch(37.6% 0.097 127.1)
-
Step 950
950
#1D2C00
oklch(26.9% 0.069 127)
#99C552 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) | #CEB946 | 0.074 |
| Deuteranopia (no green cones) | #C8B65A | 0.075 |
| Tritanopia (no blue cones) | #9EBDAC | 0.120 |
| Achromatopsia (no color) | #B7B7B7 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99C552
#99C552
oklch(76.8% 0.152 127.2)
- #CD98FE
#CD98FE
oklch(76.8% 0.151 307.1)
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 #99C552, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Olive Green #A4BE5C ΔE 0.028
- Pea #A4BF20 ΔE 0.031
- Yellow Green #9ACD32 ΔE 0.036
- Bright Olive #9CBB04 ΔE 0.040
- Light Moss Green #A6C875 ΔE 0.042
- Light Olive #ACBF69 ΔE 0.042
- Slime Green #99CC04 ΔE 0.047
- Mustard Green #A8B504 ΔE 0.048
Use #99C552 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.