#99C956
Closest named color: Yellow Green (#9ACD32). oklch(77.8% 0.154 128.5), rgb(153, 201, 86).
Aa
Black text reads best on this color (10.84:1).
About this color
#99C956 is a medium-light, vivid green. In OKLCH its lightness is 78%, its chroma 0.154 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.031 away. Black text reads best on it, at 10.84:1.
| Hue family | Greens |
| Lightness | medium-light (78%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 10.84:1 |
| White text | 1.93:1 |
Values
| HEX | #99C956 |
| RGB | rgb(153, 201, 86) |
| HSL | hsl(85, 52%, 56%) |
| OKLCH | oklch(77.8% 0.154 128.5) |
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 #99C956 | 1.93:1 | Fails | Lc -41.3 | Non-text elements, placeholder text |
| Black text on #99C956 | 10.84:1 | AAA | Lc 66.9 | Content text, not long reading |
| #99C956 text on white | 1.93:1 | Fails | Lc 37.0 | Non-text elements, placeholder text |
| #99C956 text on black | 10.84:1 | AAA | Lc -65.4 | 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
#F1F8EA
oklch(97% 0.02 128.7)
-
Step 100
100
#E1F0D1
oklch(93.6% 0.044 128.4)
-
Step 200
200
#C8E5A8
oklch(88.6% 0.086 128.7)
-
Step 300
300 (this color)
#99C956
oklch(77.8% 0.154 128.5)
-
Step 400
400
#7DB500
oklch(70.7% 0.186 128.5)
-
Step 500
500
#6B9B00
oklch(63.1% 0.166 128.3)
-
Step 600
600
#598200
oklch(55.5% 0.146 128.3)
-
Step 700
700
#4A6E00
oklch(49.2% 0.13 128.6)
-
Step 800
800
#3C5A00
oklch(42.8% 0.113 128.5)
-
Step 900
900
#314B00
oklch(37.7% 0.1 128.7)
-
Step 950
950
#1C2D00
oklch(27.2% 0.072 128.5)
#99C956 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) | #D2BC4A | 0.079 |
| Deuteranopia (no green cones) | #CBB95E | 0.080 |
| Tritanopia (no blue cones) | #9DC1B0 | 0.120 |
| Achromatopsia (no color) | #BABABA | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99C956
#99C956
oklch(77.8% 0.154 128.5)
- #D29BFF
#D29BFF
oklch(77.8% 0.149 308.6)
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 #99C956, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.031
- Light Olive Green #A4BE5C ΔE 0.035
- Pea #A4BF20 ΔE 0.036
- Light Moss Green #A6C875 ΔE 0.040
- Slime Green #99CC04 ΔE 0.044
- Light Olive #ACBF69 ΔE 0.046
- Bright Olive #9CBB04 ΔE 0.048
- Tan Green #A9BE70 ΔE 0.052
Use #99C956 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.