#BFC641
Closest named color: Mustard Yellow (#D2BD0A). oklch(79.7% 0.152 112.3), rgb(191, 198, 65).
Aa
Black text reads best on this color (11.36:1).
About this color
#BFC641 is a light, vivid yellow. In OKLCH its lightness is 80%, its chroma 0.152 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mustard Yellow (#D2BD0A), ΔE 0.033 away. Black text reads best on it, at 11.36:1.
| Hue family | Yellows |
| Lightness | light (80%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.36:1 |
| White text | 1.84:1 |
Values
| HEX | #BFC641 |
| RGB | rgb(191, 198, 65) |
| HSL | hsl(63, 54%, 52%) |
| OKLCH | oklch(79.7% 0.152 112.3) |
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 #BFC641 | 1.84:1 | Fails | Lc -38.8 | Non-text elements, placeholder text |
| Black text on #BFC641 | 11.36:1 | AAA | Lc 69.3 | Content text, not long reading |
| #BFC641 text on white | 1.84:1 | Fails | Lc 34.6 | Non-text elements, placeholder text |
| #BFC641 text on black | 11.36:1 | AAA | Lc -67.9 | 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
#F5F7E8
oklch(97.1% 0.02 112.9)
-
Step 100
100
#EAEDCC
oklch(93.5% 0.044 111.5)
-
Step 200
200
#DADF9E
oklch(88.4% 0.084 111.7)
-
Step 300
300 (this color)
#BFC641
oklch(79.7% 0.152 112.3)
-
Step 400
400
#A3A900
oklch(70.6% 0.157 112.3)
-
Step 500
500
#8C9100
oklch(63.1% 0.14 112.2)
-
Step 600
600
#757A00
oklch(55.6% 0.124 112.6)
-
Step 700
700
#626600
oklch(49% 0.109 112.4)
-
Step 800
800
#505400
oklch(42.8% 0.095 112.9)
-
Step 900
900
#434600
oklch(37.9% 0.084 112.5)
-
Step 950
950
#272900
oklch(27% 0.06 112.6)
#BFC641 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) | #D5BD2D | 0.035 |
| Deuteranopia (no green cones) | #D5C04A | 0.037 |
| Tritanopia (no blue cones) | #CCBAAB | 0.135 |
| Achromatopsia (no color) | #BFBFBF | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFC641
#BFC641
oklch(79.7% 0.152 112.3)
- #BEAFFF
#BEAFFF
oklch(79.6% 0.113 292.2)
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 #BFC641, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.033
- Olive Yellow #C2B709 ΔE 0.039
- Dark Yellow #D5B60A ΔE 0.046
- Pea #A4BF20 ΔE 0.048
- Mustard #CEB301 ΔE 0.049
- Light Olive Green #A4BE5C ΔE 0.049
- Light Olive #ACBF69 ΔE 0.049
- Greenish Tan #BCCB7A ΔE 0.050
Use #BFC641 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.