#B3EF33
Closest named color: Yellowy Green (#BFF128). oklch(88% 0.211 126.6), rgb(179, 239, 51).
Aa
Black text reads best on this color (15.31:1).
About this color
#B3EF33 is a light, vivid green. In OKLCH its lightness is 88%, its chroma 0.211 and its hue 127°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellowy Green (#BFF128), ΔE 0.015 away. Black text reads best on it, at 15.31:1.
| Hue family | Greens |
| Lightness | light (88%) |
| Chroma | vivid (0.211) |
| Temperature | in between |
| Nearest name | Yellowy Green (#BFF128) |
| Black text | 15.31:1 |
| White text | 1.37:1 |
Values
| HEX | #B3EF33 |
| RGB | rgb(179, 239, 51) |
| HSL | hsl(79, 85%, 57%) |
| OKLCH | oklch(88% 0.211 126.6) |
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 #B3EF33 | 1.37:1 | Fails | Lc -20.5 | Dividers and decoration only |
| Black text on #B3EF33 | 15.31:1 | AAA | Lc 85.7 | Fine for body text |
| #B3EF33 text on white | 1.37:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #B3EF33 text on black | 15.31:1 | AAA | Lc -85.6 | Fine for body text |
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 200.
-
Step 50
50
#EFFAE0
oklch(97% 0.036 125.8)
-
Step 100
100
#DCF4BC
oklch(93.6% 0.078 126.7)
-
Step 200
200 (this color)
#B3EF33
oklch(88% 0.211 126.6)
-
Step 300
300
#9DD700
oklch(80.9% 0.208 126.7)
-
Step 400
400
#83B300
oklch(70.6% 0.181 126.5)
-
Step 500
500
#709A00
oklch(63.2% 0.162 126.5)
-
Step 600
600
#5D8100
oklch(55.5% 0.142 126.6)
-
Step 700
700
#4E6D00
oklch(49.2% 0.126 126.7)
-
Step 800
800
#3F5900
oklch(42.7% 0.11 126.7)
-
Step 900
900
#344A00
oklch(37.7% 0.097 126.5)
-
Step 950
950
#1D2C00
oklch(26.9% 0.069 127)
#B3EF33 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) | #FCDE00 | 0.098 |
| Deuteranopia (no green cones) | #F4DB47 | 0.100 |
| Tritanopia (no blue cones) | #BAE4CD | 0.169 |
| Achromatopsia (no color) | #DCDCDC | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B3EF33
#B3EF33
oklch(88% 0.211 126.6)
- #E4CBFF
#E4CBFF
oklch(88% 0.075 306.7)
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 #B3EF33, closest first.
No curated palette has a color within ΔE 0.04 of #B3EF33.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellowy Green #BFF128 ΔE 0.015
- Kiwi #9CEF43 ΔE 0.024
- Lemon Green #ADF802 ΔE 0.030
- Yellowgreen #BBF90F ΔE 0.032
- Light Grass Green #9AF764 ΔE 0.035
- Greeny Yellow #C6F808 ΔE 0.036
- Green Yellow #ADFF2F ΔE 0.042
- Light Lime #AEFD6C ΔE 0.044
Use #B3EF33 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.