#BCB42C
Closest named color: Olive Yellow (#C2B709). oklch(75.4% 0.148 105.9), rgb(188, 180, 44).
Aa
Black text reads best on this color (9.70:1).
About this color
#BCB42C is a medium-light, vivid yellow. In OKLCH its lightness is 75%, its chroma 0.148 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Yellow (#C2B709), ΔE 0.017 away. Black text reads best on it, at 9.70:1.
| Hue family | Yellows |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Olive Yellow (#C2B709) |
| Black text | 9.70:1 |
| White text | 2.16:1 |
Values
| HEX | #BCB42C |
| RGB | rgb(188, 180, 44) |
| HSL | hsl(57, 62%, 45%) |
| OKLCH | oklch(75.4% 0.148 105.9) |
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 #BCB42C | 2.16:1 | Fails | Lc -47.1 | Large or bold text, headings |
| Black text on #BCB42C | 9.70:1 | AAA | Lc 61.6 | Content text, not long reading |
| #BCB42C text on white | 2.16:1 | Fails | Lc 42.4 | Non-text elements, placeholder text |
| #BCB42C text on black | 9.70:1 | AAA | Lc -59.8 | 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
#F6F6ED
oklch(97.1% 0.012 106.6)
-
Step 100
100
#ECEBD7
oklch(93.5% 0.027 104.6)
-
Step 200
200
#DDDCB5
oklch(88.5% 0.052 106.2)
-
Step 300
300
#C8C57D
oklch(80.9% 0.093 106.2)
-
Step 400
400 (this color)
#BCB42C
oklch(75.4% 0.148 105.9)
-
Step 500
500
#958D00
oklch(63% 0.134 105.6)
-
Step 600
600
#7D7700
oklch(55.7% 0.119 106.2)
-
Step 700
700
#696400
oklch(49.2% 0.105 106.3)
-
Step 800
800
#565100
oklch(42.6% 0.091 105.5)
-
Step 900
900
#484400
oklch(37.8% 0.081 105.9)
-
Step 950
950
#2A2800
oklch(27% 0.058 106.8)
#BCB42C 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) | #C4AD09 | 0.020 |
| Deuteranopia (no green cones) | #C7B337 | 0.019 |
| Tritanopia (no blue cones) | #CAA89B | 0.134 |
| Achromatopsia (no color) | #B0B0B0 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BCB42C
#BCB42C
oklch(75.4% 0.148 105.9)
- #A8A2FF
#A8A2FF
oklch(75.4% 0.132 285.7)
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 #BCB42C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Yellow #C2B709 ΔE 0.017
- Muddy Yellow #BFAC05 ΔE 0.021
- Mustard #CEB301 ΔE 0.027
- Mustard Green #A8B504 ΔE 0.034
- Dark Yellow #D5B60A ΔE 0.038
- Burnt Yellow #D5AB09 ΔE 0.040
- Mustard Yellow #D2BD0A ΔE 0.043
- Light Olive Green #A4BE5C ΔE 0.043
Use #BCB42C 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.