#99BC3C
Closest named color: Bright Olive (#9CBB04). oklch(74.5% 0.157 123.5), rgb(153, 188, 60).
Aa
Black text reads best on this color (9.61:1).
About this color
#99BC3C is a medium-light, vivid yellow. In OKLCH its lightness is 74%, its chroma 0.157 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bright Olive (#9CBB04), ΔE 0.021 away. Black text reads best on it, at 9.61:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Bright Olive (#9CBB04) |
| Black text | 9.61:1 |
| White text | 2.18:1 |
Values
| HEX | #99BC3C |
| RGB | rgb(153, 188, 60) |
| HSL | hsl(76, 52%, 49%) |
| OKLCH | oklch(74.5% 0.157 123.5) |
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 #99BC3C | 2.18:1 | Fails | Lc -47.6 | Large or bold text, headings |
| Black text on #99BC3C | 9.61:1 | AAA | Lc 61.1 | Content text, not long reading |
| #99BC3C text on white | 2.18:1 | Fails | Lc 42.8 | Non-text elements, placeholder text |
| #99BC3C text on black | 9.61:1 | AAA | Lc -59.3 | Large or bold text, headings |
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
#F3F7EE
oklch(97.1% 0.013 126.4)
-
Step 100
100
#E6EDD9
oklch(93.5% 0.028 122.7)
-
Step 200
200
#D2E0B8
oklch(88.6% 0.055 123.2)
-
Step 300
300
#B4CC84
oklch(81% 0.099 123.6)
-
Step 400
400 (this color)
#99BC3C
oklch(74.5% 0.157 123.5)
-
Step 500
500
#779800
oklch(63.1% 0.156 123.6)
-
Step 600
600
#647F00
oklch(55.5% 0.136 123.2)
-
Step 700
700
#536B00
oklch(49% 0.121 123.6)
-
Step 800
800
#445800
oklch(42.8% 0.106 123.5)
-
Step 900
900
#384900
oklch(37.7% 0.093 123.4)
-
Step 950
950
#202B00
oklch(26.9% 0.066 123.3)
#99BC3C 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) | #C7B029 | 0.066 |
| Deuteranopia (no green cones) | #C2AF46 | 0.068 |
| Tritanopia (no blue cones) | #A0B3A2 | 0.129 |
| Achromatopsia (no color) | #AFAFAF | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99BC3C
#99BC3C
oklch(74.5% 0.157 123.5)
- #C191FD
#C191FD
oklch(74.4% 0.158 303.3)
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 #99BC3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bright Olive #9CBB04 ΔE 0.021
- Pea #A4BF20 ΔE 0.022
- Mustard Green #A8B504 ΔE 0.027
- Avocado #90B134 ΔE 0.033
- Light Olive Green #A4BE5C ΔE 0.033
- Dark Lime #84B701 ΔE 0.041
- Icky Green #8FAE22 ΔE 0.042
- Turtle Green #75B84F ΔE 0.045
Use #99BC3C 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.