#99CB5B
Closest named color: Yellow Green (#9ACD32). oklch(78.3% 0.152 129.4), rgb(153, 203, 91).
Aa
Black text reads best on this color (11.04:1).
About this color
#99CB5B is a light, vivid green. In OKLCH its lightness is 78%, its chroma 0.152 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.033 away. Black text reads best on it, at 11.04:1.
| Hue family | Greens |
| Lightness | light (78%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.04:1 |
| White text | 1.90:1 |
Values
| HEX | #99CB5B |
| RGB | rgb(153, 203, 91) |
| HSL | hsl(87, 52%, 58%) |
| OKLCH | oklch(78.3% 0.152 129.4) |
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 #99CB5B | 1.90:1 | Fails | Lc -40.3 | Non-text elements, placeholder text |
| Black text on #99CB5B | 11.04:1 | AAA | Lc 67.8 | Content text, not long reading |
| #99CB5B text on white | 1.90:1 | Fails | Lc 36.1 | Non-text elements, placeholder text |
| #99CB5B text on black | 11.04:1 | AAA | Lc -66.4 | 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
#E1F0D2
oklch(93.6% 0.043 129)
-
Step 200
200
#C7E5AA
oklch(88.5% 0.085 129.9)
-
Step 300
300 (this color)
#99CB5B
oklch(78.3% 0.152 129.4)
-
Step 400
400
#7AB600
oklch(70.8% 0.189 129.4)
-
Step 500
500
#689C00
oklch(63.2% 0.168 129.4)
-
Step 600
600
#578300
oklch(55.6% 0.148 129.3)
-
Step 700
700
#486E00
oklch(49.1% 0.131 129.4)
-
Step 800
800
#3A5A00
oklch(42.6% 0.114 129.5)
-
Step 900
900
#304B00
oklch(37.7% 0.1 129.3)
-
Step 950
950
#1B2D00
oklch(27.1% 0.072 129.3)
#99CB5B 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) | #D4BE50 | 0.081 |
| Deuteranopia (no green cones) | #CCBB62 | 0.080 |
| Tritanopia (no blue cones) | #9DC3B2 | 0.118 |
| Achromatopsia (no color) | #BCBCBC | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99CB5B
#99CB5B
oklch(78.3% 0.152 129.4)
- #D49DFF
#D49DFF
oklch(78.4% 0.146 309.1)
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 #99CB5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.033
- Light Moss Green #A6C875 ΔE 0.037
- Light Olive Green #A4BE5C ΔE 0.037
- Pea #A4BF20 ΔE 0.042
- Light Olive #ACBF69 ΔE 0.046
- Slime Green #99CC04 ΔE 0.047
- Pale Olive Green #B1D27B ΔE 0.050
- Tan Green #A9BE70 ΔE 0.052
Use #99CB5B 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.