#99B548
Closest named color: Avocado (#90B134). oklch(73% 0.139 122.1), rgb(153, 181, 72).
Aa
Black text reads best on this color (9.05:1).
About this color
#99B548 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 73%, its chroma 0.139 and its hue 122°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Avocado (#90B134), ΔE 0.023 away. Black text reads best on it, at 9.05:1.
| Hue family | Yellows |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Avocado (#90B134) |
| Black text | 9.05:1 |
| White text | 2.31:1 |
Values
| HEX | #99B548 |
| RGB | rgb(153, 181, 72) |
| HSL | hsl(75, 43%, 50%) |
| OKLCH | oklch(73% 0.139 122.1) |
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 #99B548 | 2.31:1 | Fails | Lc -50.5 | Large or bold text, headings |
| Black text on #99B548 | 9.05:1 | AAA | Lc 58.4 | Large or bold text, headings |
| #99B548 text on white | 2.31:1 | Fails | Lc 45.6 | Large or bold text, headings |
| #99B548 text on black | 9.05:1 | AAA | Lc -56.5 | 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
#F4F7EE
oklch(97.1% 0.012 121.7)
-
Step 100
100
#E7EDDB
oklch(93.7% 0.025 121.9)
-
Step 200
200
#D3DFBC
oklch(88.5% 0.049 122.8)
-
Step 300
300
#B7CA8B
oklch(80.9% 0.087 122)
-
Step 400
400 (this color)
#99B548
oklch(73% 0.139 122.1)
-
Step 500
500
#7A9700
oklch(63.1% 0.154 122.2)
-
Step 600
600
#667F00
oklch(55.6% 0.135 122.3)
-
Step 700
700
#566A00
oklch(49% 0.118 121.7)
-
Step 800
800
#465700
oklch(42.7% 0.103 121.8)
-
Step 900
900
#3A4900
oklch(37.9% 0.092 122)
-
Step 950
950
#212B00
oklch(27% 0.066 122.2)
#99B548 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) | #BFAB3C | 0.055 |
| Deuteranopia (no green cones) | #BCAA4F | 0.058 |
| Tritanopia (no blue cones) | #A0AC9E | 0.117 |
| Achromatopsia (no color) | #AAAAAA | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99B548
#99B548
oklch(73% 0.139 122.1)
- #B891F0
#B891F0
oklch(73% 0.139 302)
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 #99B548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Avocado #90B134 ΔE 0.023
- Light Olive Green #A4BE5C ΔE 0.033
- Icky Green #8FAE22 ΔE 0.034
- Mustard Green #A8B504 ΔE 0.034
- Bright Olive #9CBB04 ΔE 0.040
- Turtle Green #75B84F ΔE 0.041
- Pea Green #8EAB12 ΔE 0.042
- Pea #A4BF20 ΔE 0.043
Use #99B548 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.