#BFC53F
Closest named color: Mustard Yellow (#D2BD0A). oklch(79.5% 0.153 111.9), rgb(191, 197, 63).
Aa
Black text reads best on this color (11.27:1).
About this color
#BFC53F is a light, vivid yellow. In OKLCH its lightness is 79%, its chroma 0.153 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 0.032 away. Black text reads best on it, at 11.27:1.
| Hue family | Yellows |
| Lightness | light (79%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Mustard Yellow (#D2BD0A) |
| Black text | 11.27:1 |
| White text | 1.86:1 |
Values
| HEX | #BFC53F |
| RGB | rgb(191, 197, 63) |
| HSL | hsl(63, 54%, 51%) |
| OKLCH | oklch(79.5% 0.153 111.9) |
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 #BFC53F | 1.86:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #BFC53F | 11.27:1 | AAA | Lc 68.8 | Content text, not long reading |
| #BFC53F text on white | 1.86:1 | Fails | Lc 35.1 | Non-text elements, placeholder text |
| #BFC53F text on black | 11.27:1 | AAA | Lc -67.5 | 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)
#BFC53F
oklch(79.5% 0.153 111.9)
-
Step 400
400
#A4A900
oklch(70.7% 0.156 111.9)
-
Step 500
500
#8C9100
oklch(63.1% 0.14 112.2)
-
Step 600
600
#767A00
oklch(55.7% 0.123 112.1)
-
Step 700
700
#636600
oklch(49.1% 0.109 111.8)
-
Step 800
800
#515300
oklch(42.6% 0.094 111.4)
-
Step 900
900
#434500
oklch(37.6% 0.083 111.6)
-
Step 950
950
#272900
oklch(27% 0.06 112.6)
#BFC53F 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) | #D4BC2A | 0.034 |
| Deuteranopia (no green cones) | #D4BF49 | 0.036 |
| Tritanopia (no blue cones) | #CCB9AA | 0.136 |
| Achromatopsia (no color) | #BEBEBE | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BFC53F
#BFC53F
oklch(79.5% 0.153 111.9)
- #BDAFFF
#BDAFFF
oklch(79.5% 0.113 291.6)
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 #BFC53F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mustard Yellow #D2BD0A ΔE 0.032
- Olive Yellow #C2B709 ΔE 0.036
- Dark Yellow #D5B60A ΔE 0.045
- Pea #A4BF20 ΔE 0.046
- Mustard #CEB301 ΔE 0.047
- Light Olive Green #A4BE5C ΔE 0.048
- Light Olive #ACBF69 ΔE 0.049
- Greenish Tan #BCCB7A ΔE 0.051
Use #BFC53F 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.