#BCA51B
Closest named color: Muddy Yellow (#BFAC05). oklch(72.1% 0.143 98.6), rgb(188, 165, 27).
Aa
Black text reads best on this color (8.53:1).
About this color
#BCA51B is a medium-light, vivid yellow. In OKLCH its lightness is 72%, its chroma 0.143 and its hue 99°. Its hue sits on the warm side of the wheel. The nearest named color is Muddy Yellow (#BFAC05), ΔE 0.021 away. Black text reads best on it, at 8.53:1.
| Hue family | Yellows |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Muddy Yellow (#BFAC05) |
| Black text | 8.53:1 |
| White text | 2.46:1 |
Values
| HEX | #BCA51B |
| RGB | rgb(188, 165, 27) |
| HSL | hsl(51, 75%, 42%) |
| OKLCH | oklch(72.1% 0.143 98.6) |
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 #BCA51B | 2.46:1 | Fails | Lc -53.2 | Large or bold text, headings |
| Black text on #BCA51B | 8.53:1 | AAA | Lc 55.8 | Large or bold text, headings |
| #BCA51B text on white | 2.46:1 | Fails | Lc 48.2 | Large or bold text, headings |
| #BCA51B text on black | 8.53:1 | AAA | Lc -53.8 | 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
#F7F6ED
oklch(97.1% 0.012 101.5)
-
Step 100
100
#EEEAD7
oklch(93.5% 0.026 97.1)
-
Step 200
200
#E1DAB5
oklch(88.4% 0.05 98.4)
-
Step 300
300
#CFC27D
oklch(80.9% 0.09 98.9)
-
Step 400
400 (this color)
#BCA51B
oklch(72.1% 0.143 98.6)
-
Step 500
500
#9E8900
oklch(63% 0.13 98.3)
-
Step 600
600
#857300
oklch(55.6% 0.115 98.3)
-
Step 700
700
#706100
oklch(49.2% 0.102 98.7)
-
Step 800
800
#5C4F00
oklch(42.8% 0.088 98.3)
-
Step 900
900
#4C4200
oklch(37.8% 0.078 99.5)
-
Step 950
950
#2D2600
oklch(26.8% 0.056 98.7)
#BCA51B 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) | #B6A100 | 0.016 |
| Deuteranopia (no green cones) | #BDA928 | 0.011 |
| Tritanopia (no blue cones) | #CC988D | 0.132 |
| Achromatopsia (no color) | #A5A5A5 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BCA51B
#BCA51B
oklch(72.1% 0.143 98.6)
- #929AFD
#929AFD
oklch(72.2% 0.143 278.7)
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 #BCA51B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muddy Yellow #BFAC05 ΔE 0.021
- Ocher #BF9B0C ΔE 0.025
- Ocre #C69C04 ΔE 0.025
- Yellow Ochre #CB9D06 ΔE 0.029
- Brown Yellow #B29705 ΔE 0.041
- Burnt Yellow #D5AB09 ΔE 0.043
- Yellow Brown #B79400 ΔE 0.045
- Dark Gold #B59410 ΔE 0.046
Use #BCA51B 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.