#B3D040
Closest named color: Yellow Green (#9ACD32). oklch(81% 0.168 120.2), rgb(179, 208, 64).
Aa
Black text reads best on this color (12.01:1).
About this color
#B3D040 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.168 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.035 away. Black text reads best on it, at 12.01:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.168) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 12.01:1 |
| White text | 1.74:1 |
Values
| HEX | #B3D040 |
| RGB | rgb(179, 208, 64) |
| HSL | hsl(72, 61%, 53%) |
| OKLCH | oklch(81% 0.168 120.2) |
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 #B3D040 | 1.74:1 | Fails | Lc -35.6 | Non-text elements, placeholder text |
| Black text on #B3D040 | 12.01:1 | AAA | Lc 72.1 | Content text, not long reading |
| #B3D040 text on white | 1.74:1 | Fails | Lc 31.7 | Non-text elements, placeholder text |
| #B3D040 text on black | 12.01:1 | AAA | Lc -71.0 | 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
#F3F8E7
oklch(97.1% 0.023 120.2)
-
Step 100
100
#E5EFCB
oklch(93.5% 0.049 120)
-
Step 200
200
#D1E39D
oklch(88.6% 0.093 120.1)
-
Step 300
300 (this color)
#B3D040
oklch(81% 0.168 120.2)
-
Step 400
400
#93AF00
oklch(70.7% 0.169 120.5)
-
Step 500
500
#7E9600
oklch(63.2% 0.151 120.4)
-
Step 600
600
#6A7E00
oklch(55.7% 0.132 120.1)
-
Step 700
700
#586A00
oklch(49.2% 0.117 120.6)
-
Step 800
800
#485600
oklch(42.6% 0.101 120)
-
Step 900
900
#3C4800
oklch(37.7% 0.09 119.9)
-
Step 950
950
#222B00
oklch(27.1% 0.065 121.1)
#B3D040 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) | #DDC429 | 0.061 |
| Deuteranopia (no green cones) | #D9C44C | 0.063 |
| Tritanopia (no blue cones) | #BDC5B4 | 0.143 |
| Achromatopsia (no color) | #C4C4C4 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3D040
#B3D040
oklch(81% 0.168 120.2)
- #CCB0FF
#CCB0FF
oklch(80.9% 0.113 300.2)
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 #B3D040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.035
- Slime Green #99CC04 ΔE 0.045
- Pea #A4BF20 ΔE 0.052
- Pale Olive Green #B1D27B ΔE 0.052
- Mustard Yellow #D2BD0A ΔE 0.058
- Light Moss Green #A6C875 ΔE 0.059
- Greenish Tan #BCCB7A ΔE 0.062
- Olive Yellow #C2B709 ΔE 0.063
Use #B3D040 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.