#BFBC33
Closest named color: Olive Yellow (#C2B709). oklch(77.4% 0.151 108.2), rgb(191, 188, 51).
Aa
Black text reads best on this color (10.45:1).
About this color
#BFBC33 is a medium-light, vivid yellow. In OKLCH its lightness is 77%, its chroma 0.151 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.016 away. Black text reads best on it, at 10.45:1.
| Hue family | Yellows |
| Lightness | medium-light (77%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 10.45:1 |
| White text | 2.00:1 |
Values
| HEX | #BFBC33 |
| RGB | rgb(191, 188, 51) |
| HSL | hsl(59, 58%, 47%) |
| OKLCH | oklch(77.4% 0.151 108.2) |
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 #BFBC33 | 2.00:1 | Fails | Lc -43.3 | Non-text elements, placeholder text |
| Black text on #BFBC33 | 10.45:1 | AAA | Lc 65.1 | Content text, not long reading |
| #BFBC33 text on white | 2.00:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #BFBC33 text on black | 10.45:1 | AAA | Lc -63.6 | 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
#F6F7E7
oklch(97.1% 0.021 109.7)
-
Step 100
100
#ECEDCB
oklch(93.7% 0.045 108.6)
-
Step 200
200
#DEDE9D
oklch(88.5% 0.084 108)
-
Step 300
300 (this color)
#BFBC33
oklch(77.4% 0.151 108.2)
-
Step 400
400
#AAA700
oklch(70.8% 0.153 108.5)
-
Step 500
500
#928F00
oklch(63.2% 0.136 108.3)
-
Step 600
600
#7A7800
oklch(55.6% 0.12 108.6)
-
Step 700
700
#676400
oklch(49% 0.105 107.7)
-
Step 800
800
#545200
oklch(42.7% 0.092 108.1)
-
Step 900
900
#464400
oklch(37.6% 0.081 107.8)
-
Step 950
950
#292800
oklch(26.9% 0.058 108.3)
#BFBC33 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) | #CCB417 | 0.025 |
| Deuteranopia (no green cones) | #CEB93E | 0.026 |
| Tritanopia (no blue cones) | #CDB0A2 | 0.136 |
| Achromatopsia (no color) | #B7B7B7 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFBC33
#BFBC33
oklch(77.4% 0.151 108.2)
- #B2A8FF
#B2A8FF
oklch(77.3% 0.123 288.4)
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 #BFBC33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.016
- Mustard #CEB301 ΔE 0.029
- Mustard Yellow #D2BD0A ΔE 0.029
- Dark Yellow #D5B60A ΔE 0.033
- Muddy Yellow #BFAC05 ΔE 0.040
- Pea #A4BF20 ΔE 0.041
- Light Olive Green #A4BE5C ΔE 0.042
- Mustard Green #A8B504 ΔE 0.044
Use #BFBC33 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.