#BFB439
Closest named color: Olive Yellow (#C2B709). oklch(75.7% 0.14 104.2), rgb(191, 180, 57).
Aa
Black text reads best on this color (9.80:1).
About this color
#BFB439 is a medium-light, moderately saturated yellow. In OKLCH its lightness is 76%, its chroma 0.140 and its hue 104°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.022 away. Black text reads best on it, at 9.80:1.
| Hue family | Yellows |
| Lightness | medium-light (76%) |
| Chroma | moderately saturated (0.140) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.80:1 |
| White text | 2.14:1 |
Values
| HEX | #BFB439 |
| RGB | rgb(191, 180, 57) |
| HSL | hsl(55, 54%, 49%) |
| OKLCH | oklch(75.7% 0.14 104.2) |
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 #BFB439 | 2.14:1 | Fails | Lc -46.6 | Large or bold text, headings |
| Black text on #BFB439 | 9.80:1 | AAA | Lc 62.0 | Content text, not long reading |
| #BFB439 text on white | 2.14:1 | Fails | Lc 41.9 | Non-text elements, placeholder text |
| #BFB439 text on black | 9.80:1 | AAA | Lc -60.3 | 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 400.
-
Step 50
50
#F6F6ED
oklch(97.1% 0.012 106.6)
-
Step 100
100
#ECEBD8
oklch(93.6% 0.025 104.4)
-
Step 200
200
#DEDBB7
oklch(88.5% 0.048 103.4)
-
Step 300
300
#C9C481
oklch(80.9% 0.087 104.5)
-
Step 400
400 (this color)
#BFB439
oklch(75.7% 0.14 104.2)
-
Step 500
500
#978C00
oklch(63% 0.133 104)
-
Step 600
600
#7F7600
oklch(55.6% 0.118 104.3)
-
Step 700
700
#6B6300
oklch(49.2% 0.104 104)
-
Step 800
800
#575100
oklch(42.7% 0.09 104.7)
-
Step 900
900
#494300
oklch(37.7% 0.08 103.8)
-
Step 950
950
#2B2700
oklch(26.9% 0.057 103.7)
#BFB439 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) | #C4AE26 | 0.016 |
| Deuteranopia (no green cones) | #C8B441 | 0.016 |
| Tritanopia (no blue cones) | #CDA89C | 0.128 |
| Achromatopsia (no color) | #B1B1B1 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFB439
#BFB439
oklch(75.7% 0.14 104.2)
- #A7A4FF
#A7A4FF
oklch(75.7% 0.129 284.4)
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 #BFB439, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.022
- Muddy Yellow #BFAC05 ΔE 0.025
- Mustard #CEB301 ΔE 0.026
- Dark Yellow #D5B60A ΔE 0.036
- Burnt Yellow #D5AB09 ΔE 0.037
- Mustard Yellow #D2BD0A ΔE 0.043
- Light Olive Green #A4BE5C ΔE 0.043
- Dark Khaki #BDB76B ΔE 0.043
Use #BFB439 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.