#99C43B
Closest named color: Pea (#A4BF20). oklch(76.4% 0.168 125.4), rgb(153, 196, 59).
Aa
Black text reads best on this color (10.31:1).
About this color
#99C43B is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.168 and its hue 125°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pea (#A4BF20), ΔE 0.018 away. Black text reads best on it, at 10.31:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Pea (#A4BF20) |
| Black text | 10.31:1 |
| White text | 2.03:1 |
Values
| HEX | #99C43B |
| RGB | rgb(153, 196, 59) |
| HSL | hsl(79, 54%, 50%) |
| OKLCH | oklch(76.4% 0.168 125.4) |
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 #99C43B | 2.03:1 | Fails | Lc -44.0 | Non-text elements, placeholder text |
| Black text on #99C43B | 10.31:1 | AAA | Lc 64.5 | Content text, not long reading |
| #99C43B text on white | 2.03:1 | Fails | Lc 39.5 | Non-text elements, placeholder text |
| #99C43B text on black | 10.31:1 | AAA | Lc -62.9 | 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
#F2F8E8
oklch(97% 0.022 123.6)
-
Step 100
100
#E2F0CD
oklch(93.6% 0.049 125.1)
-
Step 200
200
#CAE5A1
oklch(88.6% 0.094 125.8)
-
Step 300
300 (this color)
#99C43B
oklch(76.4% 0.168 125.4)
-
Step 400
400
#86B300
oklch(70.8% 0.179 125.6)
-
Step 500
500
#739900
oklch(63.1% 0.159 125.3)
-
Step 600
600
#608100
oklch(55.7% 0.141 125.5)
-
Step 700
700
#506C00
oklch(49.1% 0.124 125.4)
-
Step 800
800
#415800
oklch(42.6% 0.107 125.2)
-
Step 900
900
#364A00
oklch(37.8% 0.095 125.3)
-
Step 950
950
#1F2C00
oklch(27.1% 0.068 125.1)
#99C43B 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) | #CFB725 | 0.076 |
| Deuteranopia (no green cones) | #C9B547 | 0.078 |
| Tritanopia (no blue cones) | #A0BBA9 | 0.136 |
| Achromatopsia (no color) | #B6B6B6 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99C43B
#99C43B
oklch(76.4% 0.168 125.4)
- #C997FF
#C997FF
oklch(76.3% 0.153 305.2)
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 #99C43B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pea #A4BF20 ΔE 0.018
- Yellow Green #9ACD32 ΔE 0.027
- Bright Olive #9CBB04 ΔE 0.027
- Slime Green #99CC04 ΔE 0.034
- Mustard Green #A8B504 ΔE 0.040
- Light Olive Green #A4BE5C ΔE 0.041
- Dark Lime Green #7EBD01 ΔE 0.047
- Apple #6ECB3C ΔE 0.047
Use #99C43B 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.