#BFAC01
Closest named color: Muddy Yellow (#BFAC05). oklch(73.8% 0.154 101.4), rgb(191, 172, 1).
Aa
Black text reads best on this color (9.11:1).
About this color
#BFAC01 is a medium-light, vivid yellow. In OKLCH its lightness is 74%, its chroma 0.154 and its hue 101°. Its hue sits on the warm side of the wheel. The nearest named color is Muddy Yellow (#BFAC05), ΔE 0.001 away. Black text reads best on it, at 9.11:1.
| Hue family | Yellows |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Muddy Yellow (#BFAC05) |
| Black text | 9.11:1 |
| White text | 2.30:1 |
Values
| HEX | #BFAC01 |
| RGB | rgb(191, 172, 1) |
| HSL | hsl(54, 99%, 38%) |
| OKLCH | oklch(73.8% 0.154 101.4) |
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 #BFAC01 | 2.30:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #BFAC01 | 9.11:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #BFAC01 text on white | 2.30:1 | Fails | Lc 45.2 | Large or bold text, headings |
| #BFAC01 text on black | 9.11:1 | AAA | Lc -56.9 | Large or bold text, headings |
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 400.
-
Step 50
50
#F7F6EC
oklch(97.1% 0.013 102)
-
Step 100
100
#EDEBD6
oklch(93.6% 0.028 102.5)
-
Step 200
200
#E0DBB3
oklch(88.5% 0.053 101.5)
-
Step 300
300
#CDC378
oklch(80.9% 0.097 101.7)
-
Step 400
400 (this color)
#BFAC01
oklch(73.8% 0.154 101.4)
-
Step 500
500
#9B8B00
oklch(63.1% 0.132 101.2)
-
Step 600
600
#827500
oklch(55.7% 0.116 101.7)
-
Step 700
700
#6D6200
oklch(49.1% 0.103 101.8)
-
Step 800
800
#595000
oklch(42.7% 0.089 102)
-
Step 900
900
#4B4200
oklch(37.7% 0.078 100.6)
-
Step 950
950
#2C2700
oklch(27% 0.057 102.1)
#BFAC01 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) | #BEA700 | 0.013 |
| Deuteranopia (no green cones) | #C3AE1C | 0.010 |
| Tritanopia (no blue cones) | #CF9E92 | 0.142 |
| Achromatopsia (no color) | #ABABAB | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFAC01
#BFAC01
oklch(73.8% 0.154 101.4)
- #9C9EFF
#9C9EFF
oklch(73.7% 0.139 281.5)
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 #BFAC01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Yellow #BFAC05 ΔE 0.001
- Olive Yellow #C2B709 ΔE 0.029
- Mustard #CEB301 ΔE 0.031
- Burnt Yellow #D5AB09 ΔE 0.035
- Mustard Green #A8B504 ΔE 0.039
- Yellow Ochre #CB9D06 ΔE 0.042
- Ocre #C69C04 ΔE 0.042
- Dark Yellow #D5B60A ΔE 0.044
Use #BFAC01 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.