#BBCF33
Closest named color: Yellow Green (#9ACD32). oklch(81.3% 0.172 116.9), rgb(187, 207, 51).
Aa
Black text reads best on this color (12.08:1).
About this color
#BBCF33 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.172 and its hue 117°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.043 away. Black text reads best on it, at 12.08:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 12.08:1 |
| White text | 1.73:1 |
Values
| HEX | #BBCF33 |
| RGB | rgb(187, 207, 51) |
| HSL | hsl(68, 62%, 51%) |
| OKLCH | oklch(81.3% 0.172 116.9) |
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 #BBCF33 | 1.73:1 | Fails | Lc -35.3 | Non-text elements, placeholder text |
| Black text on #BBCF33 | 12.08:1 | AAA | Lc 72.4 | Content text, not long reading |
| #BBCF33 text on white | 1.73:1 | Fails | Lc 31.4 | Non-text elements, placeholder text |
| #BBCF33 text on black | 12.08:1 | AAA | Lc -71.3 | 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
#F4F8E7
oklch(97.2% 0.023 117.6)
-
Step 100
100
#E7EFCA
oklch(93.7% 0.049 117.3)
-
Step 200
200
#D4E299
oklch(88.5% 0.096 117.2)
-
Step 300
300 (this color)
#BBCF33
oklch(81.3% 0.172 116.9)
-
Step 400
400
#9BAC00
oklch(70.7% 0.162 116.6)
-
Step 500
500
#849400
oklch(63.2% 0.146 117.1)
-
Step 600
600
#6F7C00
oklch(55.6% 0.128 116.8)
-
Step 700
700
#5D6800
oklch(49.1% 0.113 116.8)
-
Step 800
800
#4C5500
oklch(42.7% 0.098 116.6)
-
Step 900
900
#3F4700
oklch(37.7% 0.087 116.8)
-
Step 950
950
#252A00
oklch(27.1% 0.062 116.5)
#BBCF33 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) | #DDC409 | 0.050 |
| Deuteranopia (no green cones) | #DBC541 | 0.054 |
| Tritanopia (no blue cones) | #C7C3B2 | 0.150 |
| Achromatopsia (no color) | #C4C4C4 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBCF33
#BBCF33
oklch(81.3% 0.172 116.9)
- #C9B3FF
#C9B3FF
oklch(81.2% 0.108 297.2)
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 #BBCF33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.043
- Slime Green #99CC04 ΔE 0.050
- Mustard Yellow #D2BD0A ΔE 0.051
- Pea #A4BF20 ΔE 0.055
- Pale Olive Green #B1D27B ΔE 0.058
- Olive Yellow #C2B709 ΔE 0.060
- Greenish Beige #C9D179 ΔE 0.064
- Greenish Tan #BCCB7A ΔE 0.065
Use #BBCF33 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.