#BFC040
Closest named color: Olive Yellow (#C2B709). oklch(78.4% 0.147 109.8), rgb(191, 192, 64).
Aa
Black text reads best on this color (10.82:1).
About this color
#BFC040 is a light, vivid yellow. In OKLCH its lightness is 78%, its chroma 0.147 and its hue 110°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.027 away. Black text reads best on it, at 10.82:1.
| Hue family | Yellows |
| Lightness | light (78%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 10.82:1 |
| White text | 1.93:1 |
Values
| HEX | #BFC040 |
| RGB | rgb(191, 192, 64) |
| HSL | hsl(60, 50%, 50%) |
| OKLCH | oklch(78.4% 0.147 109.8) |
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 #BFC040 | 1.93:1 | Fails | Lc -41.4 | Non-text elements, placeholder text |
| Black text on #BFC040 | 10.82:1 | AAA | Lc 66.8 | Content text, not long reading |
| #BFC040 text on white | 1.93:1 | Fails | Lc 37.1 | Non-text elements, placeholder text |
| #BFC040 text on black | 10.82:1 | AAA | Lc -65.3 | 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
#F6F7E8
oklch(97.1% 0.02 109.9)
-
Step 100
100
#EBEDCD
oklch(93.6% 0.042 110.1)
-
Step 200
200
#DCDEA0
oklch(88.4% 0.081 109.5)
-
Step 300
300 (this color)
#BFC040
oklch(78.4% 0.147 109.8)
-
Step 400
400
#A8A800
oklch(70.8% 0.154 109.8)
-
Step 500
500
#909000
oklch(63.2% 0.138 109.8)
-
Step 600
600
#787900
oklch(55.7% 0.122 110.4)
-
Step 700
700
#656500
oklch(49.1% 0.107 109.8)
-
Step 800
800
#535300
oklch(42.8% 0.093 109.8)
-
Step 900
900
#454500
oklch(37.8% 0.082 109.8)
-
Step 950
950
#282900
oklch(27.1% 0.06 111.2)
#BFC040 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) | #CFB82D | 0.028 |
| Deuteranopia (no green cones) | #D0BC49 | 0.029 |
| Tritanopia (no blue cones) | #CCB4A6 | 0.132 |
| Achromatopsia (no color) | #BABABA | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFC040
#BFC040
oklch(78.4% 0.147 109.8)
- #B7ABFF
#B7ABFF
oklch(78.3% 0.119 289.9)
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 #BFC040, closest first.
No curated palette has a color within ΔE 0.04 of #BFC040.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.027
- Mustard Yellow #D2BD0A ΔE 0.030
- Mustard #CEB301 ΔE 0.037
- Dark Yellow #D5B60A ΔE 0.038
- Light Olive Green #A4BE5C ΔE 0.041
- Light Olive #ACBF69 ΔE 0.042
- Pea #A4BF20 ΔE 0.045
- Light Moss Green #A6C875 ΔE 0.050
Use #BFC040 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.