#BBCE09
Closest named color: Yellow Green (#9ACD32). oklch(80.9% 0.184 116.3), rgb(187, 206, 9).
Aa
Black text reads best on this color (11.94:1).
About this color
#BBCE09 is a light, vivid yellow. In OKLCH its lightness is 81%, its chroma 0.184 and its hue 116°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Yellow Green (#9ACD32), ΔE 0.041 away. Black text reads best on it, at 11.94:1.
| Hue family | Yellows |
| Lightness | light (81%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Yellow Green (#9ACD32) |
| Black text | 11.94:1 |
| White text | 1.75:1 |
Values
| HEX | #BBCE09 |
| RGB | rgb(187, 206, 9) |
| HSL | hsl(66, 92%, 42%) |
| OKLCH | oklch(80.9% 0.184 116.3) |
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 #BBCE09 | 1.75:1 | Fails | Lc -35.9 | Non-text elements, placeholder text |
| Black text on #BBCE09 | 11.94:1 | AAA | Lc 71.9 | Content text, not long reading |
| #BBCE09 text on white | 1.75:1 | Fails | Lc 32.0 | Non-text elements, placeholder text |
| #BBCE09 text on black | 11.94:1 | AAA | Lc -70.8 | 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
#F4F8E5
oklch(97.1% 0.025 116.5)
-
Step 100
100
#E7EFC7
oklch(93.6% 0.053 116.6)
-
Step 200
200
#D5E293
oklch(88.5% 0.102 116.2)
-
Step 300
300 (this color)
#BBCE09
oklch(80.9% 0.184 116.3)
-
Step 400
400
#9CAC00
oklch(70.7% 0.162 116.2)
-
Step 500
500
#859300
oklch(63% 0.144 116.3)
-
Step 600
600
#707C00
oklch(55.7% 0.128 116.3)
-
Step 700
700
#5E6800
oklch(49.2% 0.113 116.2)
-
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)
#BBCE09 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) | #DDC200 | 0.055 |
| Deuteranopia (no green cones) | #DCC42A | 0.056 |
| Tritanopia (no blue cones) | #C8C1AF | 0.161 |
| Achromatopsia (no color) | #C3C3C3 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BBCE09
#BBCE09
oklch(80.9% 0.184 116.3)
- #C7B2FF
#C7B2FF
oklch(80.9% 0.109 296.4)
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 #BBCE09, closest first.
No curated palette has a color within ΔE 0.04 of #BBCE09.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Yellow Green #9ACD32 ΔE 0.041
- Slime Green #99CC04 ΔE 0.044
- Mustard Yellow #D2BD0A ΔE 0.053
- Pea #A4BF20 ΔE 0.053
- Olive Yellow #C2B709 ΔE 0.060
- Bright Olive #9CBB04 ΔE 0.069
- Dark Yellow #D5B60A ΔE 0.070
- Kiwi Green #8EE53F ΔE 0.070
Use #BBCE09 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.